Biggest changeFurthermore, management believes that the presentation of non-GAAP measures when shown in conjunction with the corresponding GAAP measures provides useful information to management and investors regarding present and future business trends relating to our financial condition and results of operations. 36 Table of Contents The following table reconciles revenue, gross profit, income from operations, net income and net income per share on a GAAP and non-GAAP basis for the fiscal years ended March 31, 2023, 2022 and 2021: Fiscal Year Ended March 31, (Dollars in Thousands, Except per Share Data) 2023 2022 2021 GAAP revenue $ 914,530 $ 855,575 $ 831,282 Service deferred revenue fair value adjustment — — 6 Non-GAAP revenue $ 914,530 $ 855,575 $ 831,288 GAAP gross profit $ 691,432 $ 641,389 $ 609,185 Service deferred revenue fair value adjustment — — 6 Share-based compensation expense 8,415 7,042 6,861 Amortization of acquired intangible assets 9,284 13,385 19,058 Acquisition related depreciation expense 22 24 23 Non-GAAP gross profit $ 709,153 $ 661,840 $ 635,133 GAAP income from operations $ 77,664 $ 48,634 $ 37,130 Service deferred revenue fair value adjustment — — 6 Share-based compensation expense 61,986 56,074 51,892 Amortization of acquired intangible assets 64,674 73,126 80,189 Business development and integration expense — (5) 2 Compensation for post-combination services — 2 251 Restructuring charges 1,782 — 62 Acquisition related depreciation expense 241 254 242 Transitional service agreement expense — 814 215 Legal judgments expense 476 1,100 2,804 Non-GAAP income from operations $ 206,823 $ 179,999 $ 172,793 GAAP net income $ 59,648 $ 35,874 $ 19,352 Service deferred revenue fair value adjustment — — 6 Share-based compensation expense 61,986 56,074 51,892 Amortization of acquired intangible assets 64,674 73,126 80,189 Business development and integration expense — (5) 2 Compensation for post-combination services — 2 251 Restructuring charges 1,782 — 62 Acquisition-related depreciation expense 241 254 242 Loss on extinguishment of debt — 596 — Change in fair value of contingent consideration — (837) — Change in fair value of derivative instrument 1,380 — — Legal judgments expense 476 1,100 2,804 Income tax adjustments (30,626) (27,796) (28,977) Non-GAAP net income $ 159,561 $ 138,388 $ 125,823 37 Table of Contents Fiscal Year Ended March 31, (Dollars in Thousands, Except per Share Data) 2023 2022 2021 GAAP diluted net income per share $ 0.82 $ 0.48 $ 0.26 Per share impact of non-GAAP adjustments identified above 1.36 1.36 1.44 Non-GAAP diluted net income per share $ 2.18 $ 1.84 $ 1.70 GAAP income from operations $ 77,664 $ 48,634 $ 37,130 Previous adjustments to determine non-GAAP income from operations 129,159 131,365 135,663 Non-GAAP income from operations 206,823 179,999 172,793 Depreciation excluding acquisition related 21,003 22,404 25,397 Non-GAAP EBITDA from operations $ 227,826 $ 202,403 $ 198,190 Critical Accounting Policies and Estimates We consider accounting policies and estimates related to revenue recognition, and valuation of goodwill, intangible assets and other acquisition accounting items to be critical in fully understanding and evaluating our financial results.
Biggest changeThe following table reconciles gross profit, income (loss) from operations, net income (loss) and net income (loss) per share on a GAAP and non-GAAP basis for the fiscal years ended March 31, 2024, 2023 and 2022, respectively (dollars in thousands, except for per share data): Fiscal Year Ended March 31, 2024 2023 2022 Revenue (GAAP and non-GAAP) $ 829,455 $ 914,530 $ 855,575 GAAP gross profit $ 642,043 $ 691,432 $ 641,389 Share-based compensation expense 10,229 8,415 7,042 Amortization of acquired intangible assets 6,549 9,284 13,385 Acquisition related depreciation expense 12 22 24 Non-GAAP gross profit $ 658,833 $ 709,153 $ 661,840 GAAP income (loss) from operations $ (149,826) $ 77,664 $ 48,634 Share-based compensation expense 70,799 61,986 56,074 Amortization of acquired intangible assets 56,886 64,674 73,126 Business development and integration expense — — (5) Compensation for post-combination services — — 2 Restructuring charges — 1,782 — Goodwill impairment 217,260 — — Acquisition related depreciation expense 119 241 254 Transitional service agreement expense — — 814 Gain on divestiture of a business (3,806) — — Legal (benefit) expense related to civil judgments (4,380) 476 1,100 Non-GAAP income from operations $ 187,052 $ 206,823 $ 179,999 GAAP net income (loss) $ (147,734) $ 59,648 $ 35,874 Share-based compensation expense 70,799 61,986 56,074 Amortization of acquired intangible assets 56,886 64,674 73,126 Business development and integration expense — — (5) Compensation for post-combination services — — 2 Restructuring charges — 1,782 — Goodwill impairment 217,260 — — Acquisition-related depreciation expense 119 241 254 Gain on divestiture of a business (3,806) — — Loss on extinguishment of debt — — 596 Change in fair value of contingent consideration — — (837) Legal (benefit) expense related to civil judgments (4,380) 476 1,100 Change in fair value of derivative instrument (206) 1,380 — Income tax adjustments (29,828) (30,626) (27,796) Non-GAAP net income $ 159,110 $ 159,561 $ 138,388 38 Table of Contents Fiscal Year Ended March 31, 2024 2023 2022 GAAP diluted net income (loss) per share $ (2.07) $ 0.82 $ 0.48 Per share impact of non-GAAP adjustments identified above 4.27 1.36 1.36 Non-GAAP diluted net income per share $ 2.20 $ 2.18 $ 1.84 GAAP income (loss) from operations $ (149,826) $ 77,664 $ 48,634 Previous adjustments to determine non-GAAP income from operations 336,878 129,159 131,365 Non-GAAP income from operations 187,052 206,823 179,999 Depreciation excluding acquisition related 17,981 21,003 22,404 Non-GAAP EBITDA from operations $ 205,033 $ 227,826 $ 202,403 Critical Accounting Policies and Estimates We consider accounting policies and estimates related to revenue recognition, and valuation of goodwill, intangible assets and other acquisition and divestiture accounting items to be critical in fully understanding and evaluating our financial results.
Service providers and enterprises, including local, state and federal government agencies, rely on our solutions to achieve the visibility and protection necessary to optimize network performance, ensure the delivery of high-quality, mission-critical applications and services, gain timely insight into the end user experience and protect their networks from attack.
Service providers and enterprises, including local, state and federal government agencies, rely on our solutions to achieve the visibility and protection necessary to optimize network performance, ensure the delivery of high-quality, mission-critical applications and services, gain timely insight into the end user experience and to protect their networks from attack.
Factors that affect our ability to maximize our operating results include, but are not limited to, our ability to introduce and enhance existing products, the marketplace acceptance of those new or enhanced products, continued expansion into international markets, expansion into new or adjacent markets, development of strategic partnerships, competition, successful acquisition integration efforts, and our ability to control costs and make improvements in a highly competitive industry.
Factors that affect our ability to maximize our operating results include, but are not limited to, our ability to introduce and enhance existing products, the marketplace acceptance of those new or enhanced products, continued expansion into international markets, expansion into new or adjacent markets, development of strategic partnerships, competition, successful acquisition and integration efforts, and our ability to control costs and make improvements in a highly competitive industry.
The loans and other obligations under the credit facility are (a) guaranteed by each of our wholly-owned material domestic restricted subsidiaries, subject to certain exceptions, and (b) are secured by substantially all of the assets of us and the subsidiary guarantors, including a pledge of all the capital stock of material subsidiaries held directly by the Borrower and the subsidiary guarantors (which pledge, in the case of any foreign subsidiary, is limited to 65% of the voting stock), subject to certain customary exceptions and limitations.
The loans and other obligations under the credit facility are (a) guaranteed by each of our wholly-owned material domestic restricted subsidiaries, subject to certain exceptions, and (b) are secured by substantially all of the assets of us and the subsidiary guarantors, including a pledge of all the capital stock of material subsidiaries held directly by us and the subsidiary guarantors (which pledge, in the case of any foreign subsidiary, is limited to 65% of the voting stock), subject to certain customary exceptions and limitations.
With limited exceptions, our return policy does not allow product returns for a refund. Returns have been insignificant to date. In addition, we have a history of successfully collecting receivables from our resellers and distributors. Valuation of Goodwill, Intangible Assets and Other Acquisition Accounting Items We amortize acquired definite-lived intangible assets over their estimated useful lives.
With limited exceptions, our return policy does not allow product returns for a refund. Returns have been insignificant to date. In addition, we have a history of successfully collecting receivables from our resellers and distributors. Valuation of Goodwill, Intangible Assets and Other Acquisition and Divestiture Accounting Items We amortize acquired definite-lived intangible assets over their estimated useful lives.
Use of Non-GAAP Financial Measures We supplement the United States generally accepted accounting principles (GAAP) financial measures we report in quarterly and annual earnings announcements, investor presentations and other investor communications by reporting the following non-GAAP measures: non-GAAP revenue, non-GAAP gross profit, non-GAAP income from operations, non-GAAP net income, non-GAAP net income per share (diluted) and non-GAAP earnings before interest and other expense, income taxes, depreciation, and amortization (EBITDA) from operations.
Use of Non-GAAP Financial Measures We supplement the United States generally accepted accounting principles (GAAP) financial measures we report in quarterly and annual earnings announcements, investor presentations and other investor communications by reporting the following non-GAAP measures: non-GAAP gross profit, non-GAAP income from operations, non-GAAP net income, non-GAAP net income per share (diluted) and non-GAAP earnings before interest and other expense, income taxes, depreciation, and amortization (EBITDA) from operations.
Some of the more significant technology trends and catalysts for our business include the evolution of customers' digital transformation initiatives such as the migration to cloud environments, the rapidly evolving cybersecurity threat landscape, business intelligence and analytics advancements, and the 5G evolution in both the service provider and enterprise customer verticals.
Some of the more significant technology trends and catalysts for our business include the evolution of customers' digital transformation initiatives such as the migration to cloud environments, the rapidly evolving cybersecurity threat landscape, artificial intelligence and business analytics advancements, and the 5G technology evolution in both the service provider and enterprise customer verticals.
We expect net cash provided by operations combined with cash, cash equivalents and marketable securities and borrowing availability under our revolving credit facility to provide sufficient liquidity to fund current obligations, capital spending, debt service requirements and working capital requirements over at least the next twelve months.
We expect net cash provided by operations combined with cash, cash equivalents, marketable securities and investments and borrowing availability under our revolving credit facility to provide sufficient liquidity to fund current obligations, capital spending, debt service requirements and working capital requirements over at least the next twelve months.
Our consolidated net leverage ratio is the ratio of our Consolidated Total Debt minus the lesser of unrestricted cash and 125% of adjusted consolidated EBITDA compared to our adjusted consolidated EBITDA. The Company’s maximum consolidated net leverage ratio is 4.00 to 1.00. These covenants and limitations are more fully described in the Second Amended and Restated Credit Agreement.
Our consolidated net leverage ratio is the ratio of our Consolidated Total Debt minus the lesser of unrestricted cash and 125% of adjusted consolidated EBITDA compared to our adjusted consolidated EBITDA. Our maximum consolidated net leverage ratio is 4.00 to 1.00. These covenants and limitations are more fully described in the Second Amended and Restated Credit Agreement.
In addition, on September 8 and 9, 2021, in proceedings initiated by third parties that did not involve NetScout, the Patent Trial and Appeal Board (PTAB) invalidated all the patent claims that were also asserted against NetScout in this case.
On September 8 and 9, 2021, in proceedings initiated by third parties that did not involve NetScout, the Patent Trial and Appeal Board (PTAB) invalidated all the patent claims that were also asserted against NetScout in this case.
In March 2021, NetScout filed a petition for a writ of certiorari to the United States Supreme Court, which was subsequently denied, challenging, among other issues, the basis for enhanced damages and the patentability of the claimed technology.
In March 2021, NetScout filed a petition for a writ of certiorari to the United States Supreme Court, which was denied, challenging, among other issues, the basis for enhanced damages and the patentability of the claimed technology.
Sources of Cash and Cash Requirements Credit Facility On July 27, 2021, we amended and extended our existing credit facility (Second Amended and Restated Credit Agreement) with a syndicate of lenders by and among: the Company; JPMorgan Chase Bank, N.A.
Sources of Cash and Cash Requirements Credit Facility On July 27, 2021, we amended and extended our existing credit facility (as amended, the Second Amended and Restated Credit Agreement) with a syndicate of lenders by and among: the Company; JPMorgan Chase Bank, N.A.
For the period from the delivery of our financial statements for the quarter ended December 31, 2022, until we have delivered financial statements for the quarter ended March 31, 2023, the applicable margin will be 1.00% per annum for Term Benchmark Revolving loans and 0% per annum for Alternate Base Rate loans, and thereafter the applicable margin will vary depending on our consolidated gross leverage ratio, ranging from 1.00% per annum for Alternate Base Rate loans and 2.00% per annum for Term Benchmark Revolving loans if our consolidated gross leverage ratio is greater than 3.50 to 1.00, down to 0% per annum for Alternate Base Rate loans and 1.00% per annum for Term Benchmark Revolving loans if our consolidated gross leverage ratio is equal to or less than 1.50 to 1.00.
For the period from the delivery of our financial statements for the quarter ended December 31, 2023, until we have delivered financial statements for the quarter ended March 31, 2024, the applicable margin will be 1.00% per annum for Term Benchmark Revolving loans and 0% per annum for Alternate Base Rate loans, and thereafter the applicable margin will vary depending on our consolidated gross leverage ratio, ranging from 1.00% per annum for Alternate Base Rate loans and 2.00% per annum for Term Benchmark Revolving loans if our consolidated gross leverage ratio is greater than 3.50 to 1.00, down to 0% per annum for Alternate Base Rate loans and 1.00% per annum for Term Benchmark Revolving loans if our consolidated gross leverage ratio is equal to or less than 1.50 to 1.00.
Macroeconomic conditions, including rising interest rates and volatility in the capital markets, may make it difficult for us to secure additional financing on favorable terms or at all. Any sale of additional equity or debt securities could r esult in additional dilution to our stockholders.
Macroeconomic conditions, including high interest rates and volatility in the capital markets, may make it difficult for us to secure additional financing on favorable terms or at all. Any sale of additional equity or debt securities could r esult in additional dilution to our stockholders.
Letter of credit 47 Table of Contents participation fees are payable to each lender providing the letter of credit sub-facility on the amount of such lender's letter of credit exposure, during the period from the closing date of the Second Amended and Restated Credit Agreement to, but excluding, the date which is the later of (i) the date on which such lender's commitment terminates or (ii) the date on which such lender ceases to have any letter of credit exposure, at a rate per annum equal to the applicable margin for term SOFR loans assuming such loans were outstanding during the period.
Letter of credit participation fees are payable to each lender providing the letter of credit sub-facility on the amount of such lender's letter of credit exposure, during the period from the closing date of the Second Amended and Restated Credit Agreement to, but excluding, the date which is the later of (i) the date on which such lender's commitment terminates or (ii) the date on which such lender ceases to have any letter of credit exposure, at a rate per annum equal to the applicable margin for term SOFR loans assuming such loans were outstanding during the period.
For the period from the delivery of the Company's financial statements for the quarter ended December 31, 2022, until we have delivered financial statements for the quarter ended March 31, 2023, the commitment fee will be 0.15% per annum, and thereafter the commitment fee will vary depending on our consolidated gross leverage ratio, ranging from 0.30% per annum if our consolidated gross leverage ratio is greater than 2.75 to 1.00, down to 0.15% per annum if our consolidated gross leverage ratio is equal to or less than 1.50 to 1.00.
For the period from the delivery of our financial statements for the quarter ended December 31, 2023, until we have delivered financial statements for the quarter ended March 31, 2024, the commitment fee will be 0.15% per annum, and thereafter the commitment fee will vary depending on our consolidated gross leverage ratio, ranging from 0.30% per annum if our consolidated gross leverage ratio is greater than 2.75 to 1.00, down to 0.15% per annum if our consolidated gross leverage ratio is equal to or less than 1.50 to 1.00.
Recent Accounting Standards For information with respect to recent accounting pronouncements on our consolidated financial statements, See Note 2 contained in the "Notes to Consolidated Financial Statements" included in Part IV of this Annual Report on Form 10-K. 49 Table of Contents
Recent Accounting Standards For information with respect to recent accounting pronouncements on our consolidated financial statements, See Note 2 contained in the "Notes to Consolidated Financial Statements" included in Part IV of this Annual Report on Form 10-K. 51 Table of Contents
However, when contracts are closely interrelated and dependent on each other, it may be necessary to account for two or more contracts as one to reflect the substance of the group of contracts. 38 Table of Contents Bundled arrangements are concurrent customer purchases of a combination of our product and service offerings that may be delivered at various points in time.
However, when contracts are closely interrelated and dependent on each other, it may be necessary to account for two or more contracts as one to reflect the substance of the group of contracts. Bundled arrangements are concurrent customer purchases of a combination of our product and service offerings that may be delivered at various points in time.
At March 31, 2023, the total accrual of our retirement obligation for our chairman and CEO was $1.1 million. The payment stream for this retirement obligation is based upon the retirement date which is currently not determinable.
At March 31, 2024, the total accrual of our retirement obligation for our chairman and CEO was $1.1 million. The payment stream for this retirement obligation is based upon the retirement date which is currently not determinable.
Management believes these non-GAAP financial measures will enhance the reader's overall understanding of our current financial performance and our prospects for the future by providing a higher degree of transparency for certain financial measures and providing a level of disclosure that helps investors understand how we plan and measure our business.
Management believes these non-GAAP financial measures will enhance the reader's overall understanding of our current financial performance and our prospects for the future by providing a higher degree of transparency for certain financial 37 Table of Contents measures and providing a level of disclosure that helps investors understand how we plan and measure our business.
These withholding transactions do not fall under the repurchase program described above, and therefore do not reduce the amount that is available for repurchase under that program. During the fiscal year ended March 31, 2023, we repaid $250.0 million of borrowings under the Second Amended and Restated Credit Agreement.
These withholding transactions do not fall under the repurchase program described above, and therefore do not reduce the amount that is available for repurchase under that program. 48 Table of Contents During the fiscal year ended March 31, 2023, we repaid $250.0 million of borrowings under the Second Amended and Restated Credit Agreement.
Overview We are an industry leader with over three decades of experience in providing service assurance and cybersecurity solutions that are based on our pioneering deep packet inspection technology at scale, which is used by many fortune 500 companies to protect their digital business services against disruption.
Overview We are an industry leader with nearly four decades of experience in providing service assurance and cybersecurity solutions that are based on our pioneering deep packet inspection technology at scale, which is used by many Fortune 500 companies to protect their digital business services against disruption.
Additionally, we will pay a fronting fee to each issuing bank in amounts to be agreed to between us and the applicable issuing bank. Interest on Alternate Base Rate loans is payable at the end of each calendar quarter.
Additionally, we will pay a fronting fee to each issuing bank in amounts to be agreed to between us and the applicable issuing bank. 49 Table of Contents Interest on Alternate Base Rate loans is payable at the end of each calendar quarter.
For a discussion of (i) our consolidated statement of operations data for the fiscal year ended March 31, 2021 including results as a percentage of revenue for that period, as well as (ii) our liquidity and capital resources for the fiscal year ended March 31, 2021, see "Comparison of Years Ended March 31, 2022 and 2021" and "Liquidity and Capital Resources" in Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year ended March 31, 2022, filed with the SEC on May 19, 2022 (our 2022 Annual Report).
For a discussion of (i) our consolidated statement of operations data for the fiscal year ended March 31, 2022 including results as a percentage of revenue for that period, as well as (ii) our liquidity and capital resources for the fiscal year ended March 31, 2022, see "Comparison of Years Ended March 31, 2023 and 2022" and "Liquidity and Capital Resources" in Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year ended March 31, 2023, filed with t he SEC on May 16, 2023 (our 2023 Annual Report).
Fiscal Year Ended March 31, (Dollars in Thousands) Change 2023 2022 % of Revenue % of Revenue $ % Income tax expense $ 8,767 1 % $ 7,018 1 % $ 1,749 25 % Commitment and Contingencies We account for claims and contingencies in accordance with authoritative guidance that requires us to record an estimated loss from a claim or loss contingency when information available prior to issuance of our consolidated financial statements indicates that it is probable that a liability has been incurred at the date of the consolidated financial statements and the amount of the loss can be reasonably estimated.
Fiscal Year Ended March 31, (Dollars in Thousands) Change 2024 2023 % of Revenue % of Revenue $ % Income tax expense $ 3,224 — % $ 8,767 1 % $ (5,543) (63) % Commitment and Contingencies We account for claims and contingencies in accordance with authoritative guidance that requires us to record an estimated loss from a claim or loss contingency when information available prior to issuance of our consolidated financial statements indicates that it is probable that a liability has been incurred at the date of the consolidated financial statements and the amount of the loss can be reasonably estimated.
As of March 31, 2023, we were in compliance with all covenants, including the specified total consolidated net leverage ratio range of 4.00 to 1.00.
At March 31, 2024, we were in compliance with all covenants, including the specified total consolidated net leverage ratio range of 4.00 to 1.00.
The unamortized capitalized debt issuance costs balance of $1.1 million was included as prepaid expenses and other current assets and a balance of $2.6 million was included as other assets in our consolidated balance sheet at March 31, 2023.
The unamortized capitalized debt issuance costs balance of $1.1 million was included as prepaid expenses and other current assets and a balance of $1.5 million was included as other assets in our consolidated balance sheet at March 31, 2024.
In connection with the delivery of common shares upon vesting of restricted stock units, we have withheld 562,360 shares for $19.4 million, and 546,053 shares for $15.7 million related to minimum statutory tax withholding requirements on these restricted stock units during the fiscal years ended March 31, 2023 and 2022, respectively.
In connection with the delivery of common shares upon vesting of restricted stock units, we have withheld 653,645 shares for $19.4 million, and 562,360 shares for $19.4 million related to minimum statutory tax withholding requirements on these restricted stock units during the fiscal years ended March 31, 2024 and 2023, respectively.
We did not complete any acquisitions during the three years ended March 31, 2023, 2022, and 2021. 39 Table of Contents Comparison of Years Ended March 31, 2023 and 2022 The sections that follow discuss our consolidated statement of operations data for the fiscal years ended March 31, 2023 and March 31, 2022 including results as a percentage of revenue for those periods.
We did not complete any acquisitions and completed one divestiture during the three years ended March 31, 2024. 40 Table of Contents Comparison of Years Ended March 31, 2024 and 2023 The sections that follow discuss our consolidated statement of operations data for the fiscal years ended March 31, 2024 and March 31, 2023 including results as a percentage of revenue for those periods.
During the fiscal year ended March 31, 2023, one direct customer, Verizon, accounted for more than 10% of our total revenue, while no indirect channel partners accounted for more than 10% of our total revenue. During the fiscal year ended March 31, 2022, no direct customer or indirect channel partner accounted for more than 10% of our total revenue.
D uring the fiscal year ended March 31, 2023, one direct customer, Verizon, accounted for more than 10% of our total revenue, while no indirect channel partners accounted for more than 10% of our total revenue.
We had unamortized capitalized debt issuance costs, net of $3.7 million at March 31, 2023, which are being amortized over the life of the revolving credit facility.
We had unamortized capitalized debt issuance costs, net of $2.6 million at March 31, 2024, which are being amortized over the life of the revolving credit facility.
Global and Macroeconomic Conditions We continue to closely monitor current global and macroeconomic conditions, including the impact of the war in Ukraine, global geopolitical tension, stock market volatility, exchange rate fluctuations, rising inflation and interest rates, and the risk of a recession, including the manner and extent to which they have impacted and could continue to impact our customers, employees, supply chain, and distribution network.
Global and Macroeconomic Conditions We continue to closely monitor current global and macroeconomic conditions, including the impacts of the ongoing war in Ukraine and hostilities in the Middle East, global geopolitical tension, stock market volatility, industry-specific capital spending trends, exchange rate fluctuations, inflation, interest rates, and the risk of a recession, including the manner and extent to which they have impacted and could continue to impact our business, customers, employees, supply chain, and distribution network.
Contractual Obligations Our contractual obligations at March 31, 2023 consisted mainly of (i) principal and interest related to our long-term debt obligations (see Long-Term Debt, Note 11 to the Consolidated Financial Statements), (ii) operating lease obligations (see Leases, Note 17 to the Consolidated Financial Statements), (iii) unconditional purchase obligations, primarily under purchase orders to purchase inventory as well as commitments for products and services used in the normal course of business (see Commitments and Contingencies, Note 18 to the Consolidated Financial Statements), and (iv) pension benefit plan (see Pension Benefit Plans, Note 15 to the Consolidated Financial Statements).
Contractual Obligations Our contractual obligations at March 31, 2024 consisted mainly of (i) principal and interest related to our long-term debt obligations (see Long-Term Debt, Note 12 to the Consolidated Financial Statements), (ii) operating lease obligations (see Leases, Note 18 t o the Consolidated Financial Statements), (iii) unconditional purchase obligations, primarily under purchase orders to purchase inventory as well as commitments for products and services used in the normal course of business (see Commitments and Contingen cies, Note 19 to the Consolidated Financial Statements), and (iv) pension benefit plan (see Pension Benefit Plans, Note 16 to the C onsolidated Financial Statements).
Non-GAAP income from operations removes the aforementioned adjustments and also removes business development and integration expense, compensation for post-combination services, legal expenses related to a civil judgment, restructuring charges, and transitional service agreement expenses.
Non-GAAP income from operations removes the aforementioned adjustments and also removes business development and integration expense, compensation for post-combination services, legal (benefit) expense related to civil judgments, goodwill impairment charges, gain on the divestiture of a business, restructuring charges, and transitional service agreement expenses.
Though we continue to monitor these impacts, we believe our current cash reserves and access to capital through our revolving credit facility leave us well-positioned to manage our business in today's environment.
Though we continue to monitor the impacts of evolving global and macroeconomic conditions on our business, we believe our current cash reserves and access to capital through our revolving credit facility leave us well-positioned to manage our business in today's environment.
The product gross profit percentage increased by one percentage point to 79% during the fiscal year ended March 31, 2023 as compared to the same period in the prior year.
The gross profit percentage increased by one percentage point to 77% during the fiscal year ended March 31, 2024 compared to the same period in the prior year.
At March 31, 2023, we had cash, cash equivalents, and marketable securities (current and non-current) of $427.9 million. This represents a decrease of $275.3 million compared to the fiscal year ended March 31, 2022.
At March 31, 2024, we had cash, cash equivalents, and marketable securities and investments (current and non-current) of $424.1 million. This represents a decrease of $3.8 million compared to the fiscal year ended March 31, 2023.
Net cash inflows relating to the purchase and sales of marketable securities increased $83.7 million relating to the amount of investments held at each respective balance sheet date, from an outflow of $57.8 million during the fiscal year ended March 31, 2022 to an inflow of $25.9 million during the fiscal year ended March 31, 2023.
Net cash inflows relating to the purchase and sales of marketable securities and investments decreased $14.0 million relating to the amount of investments held at each respective balance sheet date, from an inflow of $25.9 million during the fiscal year ended March 31, 2023 to an inflow of $12.0 million during the fiscal year ended March 31, 2024.
We consult with legal counsel on those issues related to litigation and seek input from other experts and advisors with respect to matters in the ordinary course of business. 43 Table of Contents Legal - From time to time, we are subject to legal proceedings and claims in the ordinary course of business.
Accounting for claims and contingencies requires us to use our judgment. We consult with legal counsel on those issues related to litigation and seek input from other experts and advisors with respect to matters in the ordinary course of business. Legal - From time to time, we are subject to legal proceedings and claims in the ordinary course of business.
We also consider our overall pricing objectives and practices across different sales channels and geographies, and market conditions. Generally, we have established SSP for a majority of our service performance obligations based on historical standalone sales. In certain instances, we have established SSP for services based upon an estimate of profitability and the underlying cost to fulfill those services.
Generally, we have established SSP for a majority of our service performance obligations based on historical standalone sales. In certain instances, we have established SSP for services based upon an estimate of profitability and the underlying cost to fulfill those services.
Amortization of acquired intangible assets consists primarily of amortization of customer relationships, and definite-lived trademark and tradenames related to our acquisition of Danaher Corporation's communication business (Comms Transaction) and the acquisitions of Simena, LLC, Network General Corporation, Avvasi Incorporated and Efflux Systems, Inc.
Amortization of acquired intangible assets consists primarily of amortization of customer relationships, definite-lived trademark and trade names, and leasehold interests related to our acquisition of 43 Table of Contents Danaher Corporation's communication business (Comms Transaction), Network General Corporation, Avvasi Incorporated and Efflux Systems, Inc.
These increases were partially offset by a $0.8 million decrease in depreciation expense, and a $0.6 million decrease in so ftware license expense. Sales and marketing. Sales and marketing expenses consist primarily of personnel expenses and commissions, overhead and other expenses associated with selling activities and marketing programs such as trade shows, seminars, advertising, and new product launch activities.
These decreases were partially offset by a $0.7 million increase in rent and other facilities related expense. Sales and marketing. Sales and marketing expenses consist primarily of personnel expenses and commissions, overhead and other expenses associated with selling activities and marketing programs such as trade shows, seminars, advertising, and new product launch activities.
We expect net cash provided by operating activities combined with cash, cash equivalents, and marketable securities and borrowing availability under our revolving credit facility will provide sufficient liquidity to fund current obligations, capital spending, debt service requirements and working capital requirement over at least the next twelve months.
We expect net cash provided by operating activities combined with cash, cash equivalents, marketable securities and investments and borrowing availability under our revolving credit facility will provide sufficient liquidity to fund current obligations, capital spending, debt service requirements and working capital requirement over at least the next twelve months. 50 Table of Contents We believe we will meet longer-term expected future cash requirements and obligations through a combination of cash flows from operating activities, available cash balances, and our revolving credit facility.
Cash and cash equivalents were impacted by the following: Fiscal Year Ended March 31, (Dollars in Thousands) 2023 2022 Net cash provided by operating activities $ 156,650 $ 296,013 Net cash provided by (used in) investing activities $ 15,304 $ (68,353) Net cash used in financing activities $ (419,430) $ (54,165) Net cash from operating activities Fiscal year 2023 compared to fiscal year 2022 Net cash provided by operating activities was $156.7 million during the fiscal year ended March 31, 2023, compared to $296.0 million of net cash provided by operating activities during the fiscal year ended March 31, 2022.
Cash and cash equivalents were impacted by the following: Fiscal Year Ended March 31, (Dollars in Thousands) 2024 2023 Net cash provided by operating activities $ 58,811 $ 156,650 Net cash provided by investing activities $ 13,358 $ 15,304 Net cash used in financing activities $ (69,352) $ (419,430) Net cash from operating activities Fiscal year 2024 compared to fiscal year 2023 Net cash provided by operating activities was $58.8 million during the fiscal year ended March 31, 2024, compared to $156.7 million of net cash provided by operating activities during the fiscal year ended March 31, 2023.
During the fiscal year ended March 31, 2023, we repurchased 4,549,329 shares of our common stock under an ASR program for $150.0 million. During the fiscal year ended March 31, 2022, we repurchased 1,330,678 shares of our common stock for $35.6 million.
During the fiscal year ended March 31, 2023, we repurchased 4,549,329 shares of our common stock under an ASR program for $150.0 million. Purchases during the fiscal year ended March 31, 2023 were under the 2017 Share Repurchase Program.
We may also agree from time to time to provide other forms of indemnification to partners or direct customers, such as indemnification that would obligate us to defend and pay any damages awarded to a third party against a partner or direct customer based on a lawsuit alleging that such third party has suffered personal injury or tangible property damage legally determined to have been caused by negligently designed or manufactured products. 44 Table of Contents We have agreed to indemnify our directors and officers and our subsidiaries' directors and officers if they are made a party or are threatened to be made a party to any proceeding (other than an action by or in the right of NetScout) by reason of the fact that the indemnified are agents of NetScout.
We may also agree from time to time to provide other forms of indemnification to partners or direct customers, such as indemnification that would obligate us to defend and pay any damages awarded to a third party against a partner or direct customer based on a lawsuit alleging that such third party has suffered personal injury or tangible property damage legally determined to have been caused by negligently designed or manufactured products.
Goodwill and other indefinite-lived intangible assets are not amortized but subject to annual impairment tests; more frequently if events or circumstances occur that would indicate a potential decline in their fair value. We perform the assessment annually during the fourth quarter and on an interim basis if potential impairment indicators arise.
Goodwill is not amortized but subject to annual impairment tests; more frequently if events or circumstances occur (a "triggering event") that would indicate the fair value of our reporting unit is below its carrying value. We perform the assessment annually during the fourth quarter and on an interim basis if potential impairment indicators arise.
The 7%, or $4.4 million, decrease in amortization of acquired intangible assets for the fiscal year ended March 31, 2023 compared to the fiscal year ended March 31, 2022 was p rimarily due to a decrease in the amortization of intangible assets related to the Comms Transaction. Restructuring charges.
The 9%, or $5.1 million, decrease in amortization of acquired intangible assets for the fiscal year ended March 31, 2024 compared to the fiscal year ended March 31, 2023 was p rimarily due to a decrease in the amortization of intangible assets acquired as part of the Comms Transaction and the Network General Corporation transaction. Restructuring charges.
Net cash from financing activities Fiscal Year Ended March 31, (Dollars in Thousands) 2023 2022 Cash used in financing activities included the following: Issuance of common stock under stock plans $ 2 $ 2 Treasury stock repurchases (150,039) (35,653) Tax withholding on restricted stock units (19,393) (15,691) Payment of debt issuance costs — (3,660) Repayment of long-term debt (250,000) (350,000) Proceeds from issuance of long-term debt — 350,000 Collection of contingent consideration — 837 $ (419,430) $ (54,165) Net cash used in financing activities increased $365.3 million to $419.4 million during the fiscal year ended March 31, 2023, compared to $54.2 million of net cash used in financing activities during the fiscal year ended March 31, 2022.
Net cash from financing activities Fiscal Year Ended March 31, (Dollars in Thousands) 2024 2023 Cash used in financing activities included the following: Issuance of common stock under stock plans $ 3 $ 2 Treasury stock repurchases, including accelerated share repurchases (50,000) (150,039) Tax withholding on restricted stock units (19,355) (19,393) Repayment of long-term debt — (250,000) $ (69,352) $ (419,430) Net cash used in financing activities decreased $350.0 million to $69.4 million during the fiscal year ended March 31, 2024, compared to $419.4 million of net cash used in financing activities during the fiscal year ended March 31, 2023.
In September 2018, the Court entered judgment and "enhanced" the jury verdict in the amount of $2.8 million as a result of a jury finding. The judgment also awarded pre- and post-judgment interest, and a running royalty on the G10 and GeoBlade products until the expiration of the patents at issue, the last date being June 2022.
The judgment also awarded pre- and post-judgment interest, and a running royalty on the G10 and GeoBlade products until the expiration of the patents at issue, the last date being June 2022.
Accounts receivable days sales outstanding was 58 days at March 31, 2023 compared to 64 days at March 31, 2022. 45 Table of Contents Net cash from investing activities Fiscal Year Ended March 31, (Dollars in Thousands) 2023 2022 Cash provided by (used in) investing activities included the following: Purchase of marketable securities $ (114,513) $ (78,367) Proceeds from maturity of marketable securities 140,462 20,569 Purchase of fixed assets (10,487) (10,350) Purchase of intangible assets (161) (50) Decrease (increase) in deposits 3 (155) $ 15,304 $ (68,353) Net cash provided by investing activities increased by $83.7 million to $15.3 million during the fiscal year ended March 31, 2023, compared to $68.4 million of net cash used in investing activities during the fiscal year ended March 31, 2022.
Accounts receivable days sales outstanding was 81 days at March 31, 2024 compared to 58 days at March 31, 2023. 47 Table of Contents Net cash from investing activities Fiscal Year Ended March 31, (Dollars in Thousands) 2024 2023 Cash provided by investing activities included the following: Purchase of marketable securities and investments $ (52,774) $ (114,513) Proceeds from sales and maturity of marketable securities 64,728 140,462 Purchase of fixed assets (6,337) (10,487) Purchase of intangible assets — (161) Proceeds from divestiture of a business 7,766 — (Increase) decrease in deposits (25) 3 $ 13,358 $ 15,304 Net cash provided by investing activities decreased by $1.9 million to $13.4 million during the fiscal year ended March 31, 2024, compared to $15.3 million of net cash provided by investing activities during the fiscal year ended March 31, 2023.
The 3%, or $5.0 million, increase in res earch and development expenses for the fiscal year ended March 31, 2023 compared to the same period last year was primarily due to a $3.8 million increase in employee-related costs due to an increase in variable incentive compensation, a $1.2 million increase in travel expenses primarily attributable to the lifting of COVID-19 related restrictions, a $0.6 million increase in overhead costs, and a $0.5 million increase in expenses related to other events.
The 8%, or $15.0 million, decrease in res earch and development expenses for the fiscal year ended March 31, 2024 compared to the same period last year was primarily due to an $11.5 million decrease in employee-related costs due to a decrease in variable incentive compensation, a $1.6 million decrease in contractor fees, and a $1.6 million decrease in depreciation expense.
The commitments under the Second Amended and Restated Credit Agreement will expire on July 27, 2026, and any outstanding loans will be due on that date.
The commitments under the Second Amended and Restated Credit Agreement will expire on July 27, 2026, and any outstanding loans will be due on that date. During the fiscal year ended March 31, 2023, we repaid $250.0 million of borrowings under the Second Amended and Restated Credit Agreement.
We allocate the transaction price among the performance obligations in an amount that depicts the relative standalone selling prices (SSP) of each obligation. Judgment is required to determine the SSP for each distinct performance obligation. We use a range of amounts to estimate SSP for each of the products and services sold, based primarily on the performance obligation's historical pricing.
We allocate the transaction price among the performance obligations in an amount that 39 Table of Contents depicts the relative standalone selling prices (SSP) of each obligation. Judgment is required to determine the SSP for each distinct performance obligation.
Non-GAAP revenue eliminates the GAAP effects of acquisitions by adding back revenue related to deferred revenue revaluation. Non-GAAP gross profit removes the aforementioned revenue adjustments and also removes expenses related to the amortization of acquired intangible assets, share-based compensation, and acquisition-related depreciation.
Non-GAAP gross profit removes expenses related to the amortization of acquired intangible assets, share-based compensation expense, and acquisition-related depreciation expense.
The 5%, or $12.7 million, increase in total sales and marketing expenses for the fiscal year ended March 31, 2023 compared to the same period last year was prima rily due to a $12.1 million increase in expenses related to trade shows, user conferences and other events, a $6.7 million increase in travel expense primarily attributable to the lifting of COVID-19 related restrictions, a $3.0 million increase in other marketing related expenses, and a $1.3 million increas e in overhead costs.
The 2%, or $5.9 million, decrease in total sales and marketing expenses for the fiscal year ended March 31, 2024 compared to the same period last year was prima rily due to a $5.5 million decrease in expenses related to trade shows, user conferences and other events, a $3.4 million decrease in advertising expense, a $1.6 million decrease in commissions expense, a $0.8 million decrease in recruitment expense, and a $0.5 million decrease in other marketing related expenses.
The 4%, or $4.8 million, increase in cost of service revenue for the fiscal year ended March 31, 2023 compared to the same period last year was primarily due to a $3.6 million increase in employee-related expenses largely due to costs associated with the timing of certain projects as well as an increase in variable incentive compensation, a $0.7 million increase in travel expense primarily attributable to the lifting of COVID-19 restrictions, and a $0.6 million incre ase in overhead costs.
The 4%, or $4.9 million, decrease in cost of service revenue for the fiscal year ended March 31, 2024 compared to the same period last year was primarily due to a $5.4 million decrease in employee-related expenses largely due to a decrease in variable incentive compensation partially offset by an increase in employee-related costs associated with the timing of certain projects.
In October 2017, the jury rendered a verdict finding in favor of the Plaintiff and that Plaintiff was entitled to $3.5 million for pre-suit damages and $2.3 million for post-suit damages. The jury indicated that the awarded damages amounts were intended to reflect a running royalty.
In October 2017, a jury rendered a verdict finding in favor of the Plaintiff and that Plaintiff was entitled to $3.5 million for pre-suit damages and $2.3 million for post-suit damages. In September 2018, the Court entered judgment and "enhanced" the jury verdict in the amount of $2.8 million as a result of a jury finding.
Our investments in property and equipment consist primarily of computer equipment, demonstration units, office equipment and facility improvements. We plan to continue to invest in capital expenditures to support our infrastructure in our fiscal year 2024.
There was a $7.8 million increase in proceeds from the divestiture of the Test Optimization business during the fiscal year ended March 31, 2024. Our investments in property and equipment consist primarily of computer equipment, demonstration units, office equipment and facility improvements. We plan to continue to invest in capital expenditures to support our infrastructure in our fiscal year 2025.
Net income for the fiscal year ended March 31, 2023 was $59.6 million, as compared with income for the fiscal year ended March 31, 2022 of $35.9 million, an increase of $23.7 million.
Net loss for the fiscal year ended March 31, 2024 was $147.7 million, as compared with net income for the fiscal year ended March 31, 2023 of $59.6 million, a decrease in net income (loss) of $207.3 million.
On February 22, 2023, we entered into a First Amendment Agreement (First Amendment) of our Second Amended and Restated Credit Agreement with our syndicate of lenders.
At March 31, 2024, $100 million was outstanding under the Second Amended and Restated Credit Agreement. On May 13, 2024, we repaid $25.0 million of borrowings under the Second Amended and Restated Credit Agreement. On February 22, 2023, we entered into a First Amendment Agreement (First Amendment) of our Second Amended and Restated Credit Agreement with a syndicate of lenders.
The 5%, or $4.1 million, increase in cost of product revenue for the fiscal year ended March 31, 2023 compared to the same period last year was primarily due to a $16.4 million increase in costs related to the delivery of radio frequency propagation modeling projects, and a $0.8 million increase in overhead costs.
The 32%, or $30.8 million, decrease in cost of product revenue for the fiscal year ended March 31, 2024 compared to the same period last year was primarily due to a $23.7 million decrease in costs related to the delivery of radio frequency propagation modeling projects, a $2.8. million decrease in the amortization of intangible assets, a $1.6 million decrease in employee-related costs associated with the timing of certain projects, a $1.3 million decrease in direct material costs, and a $0.8 million decrease in obsolescence charges.
The 4%, or $18.3 million, increase in service revenue compared with the same period last year was primarily due to an increase in revenue from maintenance contracts.
This decrease in revenue was partially offset by an increase in revenue from cybersecurity offerings from both service provider and enterprise customers. Service. The 1%, or $5.3 million, increase in service revenue compared with the same period last year was primarily due to an increase in revenue from maintenance contracts and professional service contracts.
Results of Operations Revenue Product revenue consists of sales of our hardware products and licensing of our software products. Service revenue consists of customer support agreements, consulting, training and stand-ready software as a service offerings.
Results of Operations Revenue Product revenue consists of sales of our hardware products and licensing of our software products. Service revenue consists of customer support agreements, consulting, training and stand-ready software as a service offerings. During the fiscal year ended March 31, 2024, no direct customer or indirect channel partner accounted for more than 10% of our total revenue.
In the opinion of management, the amount of ultimate expense with respect to any current legal proceedings and claims, if determined adversely, will not have a material adverse effect on our financial condition, results of operations or cash flows.
In the opinion of management, the amount of ultimate expense with respect to any current legal proceedings and claims, if determined adversely, will not have a material adverse effect on our financial condition, results of operations or cash flows. 45 Table of Contents As previously disclosed, in March 2016, Packet Intelligence LLC (Packet Intelligence or Plaintiff) filed a Complaint against NetScout and two subsidiary entities in the United States District Court for the Eastern District of Texas asserting infringement of five United States patents.
Fiscal Year Ended March 31, (Dollars in Thousands) Change 2023 2022 % of Revenue % of Revenue $ % Interest and other expense, net $ (9,249) (1) % $ (5,742) (1) % $ (3,507) (61) % The 61%, or $3.5 million, change in interest and other expense, net was primarily due to a $2.6 million increase in foreign exchange expense, and a $2.2 million increase in interest expense on the credit facility due to an increase in the average interest rate during the fiscal year ended March 31, 2023 when compared to the fiscal year ended March 31, 2022, partially offset by a loss on the extinguishment of debt recorded during the fiscal year ended March 31, 2022, a $1.4 million decrease from the change in fair value of a derivative instrument, a $0.8 million decrease in transitional services agreement income related to the divestiture of the Company's handheld network test (HNT) tools business in September 2018, and a $0.8 million increase from the change in fair value of contingent consideration.
Fiscal Year Ended March 31, (Dollars in Thousands) Change 2024 2023 % of Revenue % of Revenue $ % Interest and other income (expense), net $ 5,316 1 % $ (9,249) (1) % $ 14,565 157 % The 157%, or $14.6 million, change in interest and other income (expense), net was primarily due to a $7.2 million increase in the fair value of the equity investment in Napatech A/S (Napatech), a $4.7 million increase in interest income, and a $1.6 million decrease in interest expense due to debt repayments on the credit facility in March 2023, partially offset by an increase in the average interest rate on the credit facility during the fiscal year ended March 31, 2024 when compared to the fiscal year ended March 31, 2023.
These decreases were partially offset by $156.7 million of net cash provided by operations during the fiscal year ended March 31, 2023.
These decreases were partially offset by $58.8 million of net cash provided by operating activities, and $7.8 million in proceeds from the divestiture of the Test Optimization business during the fiscal year ended March 31, 2024.
T hese increases were partially offset by a $5.6 million decrease in commissions expense, a $2.4 million decrease in employee-related expenses largely due to a decrease in variable incentive compensation, a $1.2 million decrease in advertising expense, and a $0.8 million decreas e in contractor fees. General and administrative.
These decreases were partially offset by a $4.0 million increase in employee-related expenses largely due to an increase in variable incentive compensation as well as an increase in headcount, and a $1.8 million increase in travel expense. General and administrative.
NetScout filed an Answer denying Plaintiff's allegations and asserting that Plaintiff's patents were, among other things, invalid, not infringed, and unenforceable due to inequitable conduct. In October 2017, a jury trial was held to address the parties' claims and counterclaims regarding infringement of three patents by the G10 and GeoBlade products, invalidity of these patents, and damages.
Plaintiff's Complaint alleged that legacy Tektronix GeoProbe products, including the G10 and GeoBlade products, infringed these patents. NetScout filed an Answer denying Plaintiff's allegations and asserting that Plaintiff's patents were, among other things, invalid, not infringed, and unenforceable due to inequitable conduct.
Total revenue by geography was as follows: Fiscal Year Ended March 31, (Dollars in Thousands) 2023 2022 Change % of Revenue % of Revenue $ % United States $ 583,482 64 % $ 501,043 59 % $ 82,439 16 % International: Europe 145,678 16 165,190 19 (19,512) (12) % Asia 61,685 7 64,968 8 (3,283) (5) % Rest of the world 123,685 13 124,374 14 (689) (1) % Subtotal international 331,048 36 354,532 41 (23,484) (7) % Total revenue $ 914,530 100 % $ 855,575 100 % $ 58,955 7 % United States revenue increased 16%, or $82.4 million, compared with the same period last year primarily due to an increase in revenue from service assurance offerings, including radio frequency propagation modeling projects.
Total revenue by geography was as follows: Fiscal Year Ended March 31, (Dollars in Thousands) 2024 2023 Change % of Revenue % of Revenue $ % United States $ 470,338 57 % $ 583,482 64 % $ (113,144) (19) % International: Europe 146,915 18 145,678 16 1,237 1 % Asia 65,396 8 61,685 7 3,711 6 % Rest of the world 146,806 17 123,685 13 23,121 19 % Subtotal international 359,117 43 331,048 36 28,069 8 % Total revenue $ 829,455 100 % $ 914,530 100 % $ (85,075) (9) % United States revenue decreased 19%, or $113.1 million, compared with the same period last year primarily due to a decrease in revenue from service assurance offerings from both enterprise and service provider customers, including radio frequency propagation modeling projects.
The 10%, or $40.7 million, increase in product revenue compared with the same period last year was primarily due to an increase in revenue from our radio frequency propagation modeling projects from service provider customers, partially offset by a decrease in revenue from other service assurance offerings. Service.
The 20%, or $90.3 million, decrease in product revenue compared with the same period last year was due to a decrease in revenue from service assurance offerings from both service provider and enterprise customers, including radio frequency propagation modeling projects, as a result of industry-specific capital spending constraints.
We believe that these factors will allow us to meet our anticipated funding requirements.
Cash Requirements We are actively managing the business to generate cash flow and believe that we currently have adequate liquidity. We believe that these factors will allow us to meet our anticipated funding requirements.
The 11%, or $36.5 million, increase in product gross profit, corresponds with the 10%, or $40.7 million, increase in product revenue, partially offset by the 5%, or $4.1 million, increase in cost of product revenue. Service.
The 3%, or $10.1 million, increase in service gross profit 42 Table of Contents corresponds with the 1%, or $5.3 million, increase in service revenue and the 4%, or $4.9 million, decrease in cost of services revenue. Gross profit.
These decreases were partially offset by a $23.8 million increase from the change in net income, an $18.0 million increase from prepaid expenses and other assets, a $17.0 million increase from inventories, a $9.7 million increase from accrued compensation and other expenses, a $5.9 million increase from share-based compensation, a $3.3 million increase from income taxes payable, a $1.4 million increase from the change in fair value of a derivative instrument, and a $0.8 million increase from the change in fair value of contingent consideration during the fiscal year ended March 31, 2023 as compared with the fiscal year ended March 31, 2022.
These decreases were partially offset by a $217.3 million goodwill impairment charge, a $15.4 million increase from deferred revenue, an $8.8 million increase from share-based compensation, an $8.1 million increase from deferred income taxes, and a $3.7 million increase from accounts payable during the fiscal year ended March 31, 2024 as compared with the fiscal year ended March 31, 2023.
The 6%, or $5.8 million, increase in general and administrative expenses for the fiscal year ended March 31, 2023 compared to the same period last year was primarily due to a $2.8 million increase in employee-related costs largely due to an increase in variable incentive compensation, a $1.1 million increase in contractor fees, a $1.1 million increase in business taxes, a $0.7 million increase in travel expenses primaril y attributable to the lifting of COVID-19 related restrictions, a $0.6 million increase in rent and other facilities related expenses, and a $0.6 million incre ase in overhead costs .
The 7%, or $7.6 million, decrease in general and administrative expenses for the fiscal year ended March 31, 2024 compared to the same period last year was primarily due to a $6.0 million decrease in legal-related expenses mainly due to a favorable decision related to the Packet Intelligence LLC appeal, a $1.6 million decrease in employee-related costs largely due to a decrease in variable incentive compensation, a $1.3 million decrease in business taxes, and a $0.8 million decrease in depreciation expense.
This increase is attributable to the 7%, or $59.0 million, increase in revenue, partially offset by the 4%, or $8.9 million, increase in cost of revenue. The gross margin percentage increased by one percentage point to 76% during the fiscal year ended March 31, 2023 compared to the same period in the prior year.
Our gross profit decreased 7%, or $49.4 million, for the fiscal year ended March 31, 2024 compared to the same period last year. This decrease is attributable to the 9%, or $85.1 million, decrease in revenue, partially offset by the 16%, or $35.7 million, decrease in cost of revenue.
This represents a decrease of $275.3 million from $703.2 million at March 31, 2022. This decrease was primarily due to $250.0 million used to repay long-term debt, $150.0 million used in treasury stock repurchases under an ASR program, $19.4 million used for tax withholdings on restricted stock units, and $10.5 million used for capital expenditures.
This represents a decrease of $3.8 million from $427.9 million at March 31, 2023. This decrease was primarily due to $50.0 million used to repurchase shares of our common stock, $19.4 million used for tax withholdings on restricted stock units, and $6.3 million used for capital expenditures.
International revenue decreased 7%, or $23.5 million, compared to the same period last year primarily driven by lower revenue from service assurance offerings. 40 Table of Contents Total revenue by product line was as follows: Fiscal Year Ended March 31, (Dollars in Thousands) 2023 2022 Change % of Revenue % of Revenue $ % Revenue: Service assurance $ 678,709 74 % $ 622,957 73 % $ 55,752 9 % Cybersecurity 235,821 26 232,618 27 3,203 1 % Total revenue $ 914,530 100 % $ 855,575 100 % $ 58,955 7 % The 9%, or $55.8 million, increase in revenue from the service assurance product line was largely due to an increase in revenue from radio frequency propagation modeling projects from service provider customers.
International revenue increased 8%, or $28.1 million, compared to the same period last year primarily driven by higher revenue from both enterprise and service provider customers from cybersecurity offerings. 41 Table of Contents Total revenue by product line was as follows: Fiscal Year Ended March 31, (Dollars in Thousands) 2024 2023 Change % of Revenue % of Revenue $ % Revenue: Service assurance $ 557,626 67 % $ 678,709 74 % $ (121,083) (18) % Cybersecurity 271,829 33 235,821 26 36,008 15 % Total revenue $ 829,455 100 % $ 914,530 100 % $ (85,075) (9) % The 18%, or $121.1 million, decrease in revenue from the service assurance product line included a decrease in revenue from radio frequency propagation modeling projects from service provider customers as well as industry-specific capital spending constraints among both service provider and enterprise customers.
The one-time termination benefits were paid in full during the fiscal year ended March 31, 2023. Interest and Other Expense, Net Interest and other expense, net includes interest earned on our cash, cash equivalents and marketable securities, interest expense and other non-operating gains or losses.
During the fiscal year ended March 31, 2024, we recorded a $3.8 million gain on the divestiture of the Test Optimization business. 44 Table of Contents Interest and Other Income (Expense), Net Interest and other income (expense), net includes interest earned on our cash, cash equivalents and marketable securities, interest expense and other non-operating gains or losses.
These increases to net income were partially offset by a $16.4 million increase in costs to deliver radio frequency propagation modeling projects, a $12.1 million increase in expenses related to trade shows, user conferences and other events, a $9.4 million increase in travel expense attributable to the lifting of COVID-19 related restrictions, an $8.3 million increase in employee-related expenses, a $3.0 million increase in other marketing related expenses, a $2.6 million increase in foreign exchange expense, a $2.2 million increase in interest expense, a $1.8 million increase in restructuring expense, a $1.7 million increase from income tax expense, a $1.4 million increase from the change in fair value of a derivative instrument, and a $1.1 million increase in business tax expenses.
These decreases in net income (loss) were partially offset by a $23.7 million decrease in costs to deliver radio frequency propagation modeling projects, a $17.1 million decrease in employee-related expenses associated with a decrease in variable incentive compensation, a $7.9 million decrease in amortization expense, a $7.2 million increase in the fair value of an equity investment, a $6.0 million decrease in legal fees mainly due to a favorable decision related to the Packet Intelligence LLC appeal, a $5.5 million decrease in expenses related to trade shows, user conferences and other events, a $5.5 million decrease in income tax expense, a $4.7 million increase in interest income, a $3.8 million gain on the divestiture of the Test Optimization business, a $3.4 million decrease in advertising expense, a $2.8 million decrease from depreciation expense, a $1.8 million decrease in restructuring expense, a $1.7 million decrease in recruiting expenses, a $1.6 million decrease in commissions expense, a $1.6 million decrease in interest expense, a $1.3 million decrease in direct material costs, and a $1.1 million decrease in business taxes.