Could someone check my math and verify that I have calculated these right? If not, could you let me know what I did wrong and what I have to do in order to get the correct response. Im trying to learn how to become better at this. I have rounded all of these responses by the way. Thank you!

Current ratio: 4.43

Accounts receivable turnover ratio: 5.31

Average collection period: 67 days

Return on assets: 13.86%

Debt to equity: 31.98%

Profit margin: 26.14%

CONSOLIDATED STATEMENTS OF INCOME (In millions, except per share amounts) Year Ended December 31, 2019 2018 2017 40.653 S 70,697 55,838 5,454 7,754 4,725 2.517 Revenue Costs and expenses: Cost of revenue Research and development Marketing and sales General and administrative Total costs and expenses Income from operations Interest and other income, net Income before provision for income taxes Provision for income taxes Net income Less: Net income attributable to participating securities Net income attributable to Class A and Class B common stockholders Earnings per share attributable to Class A and Class B common stockholders: Basic 12.770 13,600 9,876 10,465 46,711 23,986 826 24,812 6,327 18,485 9,355 10,273 7,846 3,451 30,925 24,913 448 25,361 3,249 22,112 (1) 22,111 20,450 20,203 391 20,594 4,660 S $ S 15,934 (14) 15,920 $ 18,485 S 6.48 $ 7.65 S 5.49 S 6.43 7.57 5.39 Diluted Weighted average shares used to compute earnings per share attributable to Class A and Class B common stockholders: Basic 2,854 2,890 2,901 2,956 2,876 2,921 $ $ s 178 Diluted Share-based compensation expense included in costs and expenses: Cost of revenue Research and development Marketing and sales General and administrative Total share-based compensation expense 377 3,488 569 402 284 3,022 511 335 4,152 2,820 436 289 3,723 4,836 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (In millions) Year Ended December 31, 2019 2018 2017 15,934 $ 18,485 $ 22,112 $ Net income Other comprehensive income (loss): Change in foreign currency translation adjustment, net of tax Change in unrealized gain/loss on available-for-sale investments and other, net of tax Comprehensive income 566 (151) 422 (450) (52) 21,610 (90) 16,410 $ 18,756 $ $ CONSOLIDATED BALANCE SHEETS (In millions, except for number of shares and par value) December 31, 2019 2018 $ 19,079 S 10,019 31,095 35,776 Assets Current assets: Cash and cash equivalents Marketable securities Accounts receivable, net of allowances of $206 and $229 as of December 31, 2019 and December 31, 2018, respectively Prepaid expenses and other current assets Total current assets Property and equipment, net Operating lease right-of-use assets, net Intangible assets, net Goodwill Other assets 7,587 1,779 50,480 24,683 9,518 1,852 66,225 35,323 9,460 894 18,715 2,759 1,294 18,301 2,576 Total assets S 133.376 S 97,334 $ 820 1,363 886 541 800 11,735 269 5,509 147 7,017 15,053 9,524 7,745 32,322 Liabilities and stockholders' equity Current liabilities: Accounts payable Partners payable Operating lease liabilities, current Accrued expenses and other current liabilities Deferred revenue and deposits Total current liabilities Operating lease liabilities, non-current Other liabilities Total liabilities Commitments and contingencies Stockholders' equity: Common stock, 30.000006 par value; 5,000 million Class A shares authorized, 2,407 million and 2,385 million shares issued and outstanding, as of December 31, 2019 and December 31, 2018, respectively: 4,141 million Class B shares authorized, 445 million and 469 million shares issued and outstanding, as of December 31, 2019 and December 31, 2018, respectively, Additional paid-in capital Accumulated other comprehensive loss Retained earnings Total stockholders' equity Total liabilities and stockholders' equity 6,190 13,207 45,851 (489) 55,692 101.054 133,376 42,906 (760) 41,981 84,127 97,334