Can someone help me find Sales to Asset, ROA, and ROE efficiency ratios for each year, including TTM?

Breakdown TTM 7/31/2019 7/31/2018 7/31/2017 7/31/2016 Total Revenue 1,649,354 1,643,502 1,612,015 1,604,574 1,634,904 Cost of Revenue 1,191,205 1,186,786 1,173,013 1,167,863 1,189,874 Gross Profit 458,149 456,716 439,002 436,711 445,030 Operating Expenses Research Development Selling General and Administrative 401,597 394,750 380,550 371,495 376,601 Total Operating Expenses 429,427 422,040 405,549 395,977 400,702 Operating Income or Loss 28,722 34,676 33,453 40,734 44,328 Interest Expense 3,887 4,436 4,460 4,452 4,495 Total Other Income/Expenses Net 0 0 Income Before Tax 30,199 35,523 32,838 39,123 42,339 Income Tax Expense 8,362 9,984 7,758 16,202 17,295 Income from Continuing Operations 21,837 25,539 25,080 22,921 25,044 Net Income 21,837 25,539 25,080 22,921 25,044 Net Income available to common s... 21,276 25,539 25,080 22,379 24,530 Breakdown 7/31/2019 7/31/2018 7/31/2017 7/31/2016 v Assets v Current Assets v Cash Cash And Cash Equivalents 101,121 96,108 87,435 88,379 Short Term Investments Total Cash 101,121 96,108 87,435 88,379 Net Receivables Inventory 38,503 39,413 41,852 42,011 Other Current Assets 17,206 19,401 15,670 16,259 Total Current Assets 168,781 190,898 181,472 159,834 > Non-current assets 333,508 290,692 273,753 290,420 Total Assets 502,289 481,590 455,225 450,254 > Liabilities and stockholders' eq... 502,289 481,590 455,225 450,254 Breakdown TTM 7/31/2019 7/31/2018 7/31/2017 7/31/2016 Total Revenue 1,649,354 1,643,502 1,612,015 1,604,574 1,634,904 Cost of Revenue 1,191,205 1,186,786 1,173,013 1,167,863 1,189,874 Gross Profit 458,149 456,716 439,002 436,711 445,030 Operating Expenses Research Development Selling General and Administrative 401,597 394,750 380,550 371,495 376,601 Total Operating Expenses 429,427 422,040 405,549 395,977 400,702 Operating Income or Loss 28,722 34,676 33,453 40,734 44,328 Interest Expense 3,887 4,436 4,460 4,452 4,495 Total Other Income/Expenses Net 0 0 Income Before Tax 30,199 35,523 32,838 39,123 42,339 Income Tax Expense 8,362 9,984 7,758 16,202 17,295 Income from Continuing Operations 21,837 25,539 25,080 22,921 25,044 Net Income 21,837 25,539 25,080 22,921 25,044 Net Income available to common s... 21,276 25,539 25,080 22,379 24,530 Breakdown 7/31/2019 7/31/2018 7/31/2017 7/31/2016 v Assets v Current Assets v Cash Cash And Cash Equivalents 101,121 96,108 87,435 88,379 Short Term Investments Total Cash 101,121 96,108 87,435 88,379 Net Receivables Inventory 38,503 39,413 41,852 42,011 Other Current Assets 17,206 19,401 15,670 16,259 Total Current Assets 168,781 190,898 181,472 159,834 > Non-current assets 333,508 290,692 273,753 290,420 Total Assets 502,289 481,590 455,225 450,254 > Liabilities and stockholders' eq... 502,289 481,590 455,225 450,254