pre_text: Financial Results and Key Performance Metrics Overview The following table provides an overview of some of our key financial metrics for each of the last three fiscal years (in millions, except per share amounts, percentages and cash conversion cycle): • Net revenues: Our net revenues increased 4% in fiscal 2019 compared to fiscal 2018. This was primarily due to an increase of 7% in product revenues, partially offset by a 3% decrease in software and hardware maintenance and other services revenues. • Gross profit margin percentage: Our gross profit margin as a percentage of net revenues increased by one percentage point in fiscal 2019 compared to fiscal 2018, reflecting an increase in gross profit margin on product revenues, and, to a lesser extent, an increase in gross profit margin on hardware maintenance and other services revenues. • Income from operations as a percentage of net revenues: Our income from operations as a percentage of net revenues remained relatively flat in fiscal 2019 compared to fiscal 2018. • Provision for income taxes: Our provision for income taxes decreased significantly in fiscal 2019 compared to fiscal 2018 as significant charges were recorded in fiscal 2018 in connection with U.S. tax reform. • Net income and Diluted income per share: The increase in both net income and diluted net income per share in fiscal 2019 compared to fiscal 2018 reflect the factors discussed above. Diluted net income per share was favorably impacted by a 6% decrease in the annual weighted average number of dilutive shares, primarily due to share repurchases. • Operating cash flows: Operating cash flows decreased by 9% in fiscal 2019 compared to fiscal 2018, reflecting changes in operating assets and liabilities, partially offset by higher net income.
table: Year Ended
table: April 26, 2019 April 27, 2018 April 28, 2017
table: Net revenues $ 6,146 $ 5,919 $ 5,491
table: Gross profit $ 3,945 $ 3,709 $ 3,364
table: Gross profit margin percentage 64 % 63% 61 %
table: Income from operations $ 1,221 $ 1,158 $ 621
table: Income from operations as a percentage of net revenues 20% 20% 11 %
table: Provision for income taxes $ 99 $ 1,083 $ 140
table: Net income $ 1,169 $ 116 $ 481
table: Diluted net income per share $ 4.51 $ 0.42 $ 1.71
table: Operating cash flows $ 1,341 $ 1,478 $ 986
question: Analyse this data from a financial earnings document. What was the change in operating cash flows between 2018 and 2019?