Select one profitability ratio to perform. Provide the formula and results. What do these results mean?

AMAZON.COM, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (in millions) Year Ended December 31, 2018 2017 2019 s 19,934 S 21,856 $ 32,173 3.033 10,073 11,588 11,478 4215 202 (292) (29) 15,341 5,418 274 219 21,789 6,864 164 (249) 796 (3.583) (4,780) 7.100 283 738 18,365 (1,314) (4,615) 3,263 472 1.151 30,723 (3,278) (7,681) 8,193 (1,383) 1.711 38,514 CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD OPERATING ACTIVITIES: Net income Adjustments to reconcile net income to net cash from operating activities Depreciation and amortization of property and equipment and capitalized content costs, operating lease assets, and other Stock-based compensation Other operating expense (income), net Other expense (income), net Deferred income taxes Changes in operating assets and liabilities Inventories Accounts receivable, net and other Accounts payable Accrued expenses and other Unearned revenue Net cash provided by (used in) operating activities INVESTING ACTIVITIES Purchases of property and equipment Proceeds from property and equipment sales and incentives Acquisitions, net of cash acquired, and other Sales and maturities of marketable securities Purchases of marketable securities Net cash provided by (used in) investing activities FINANCING ACTIVITIES: Proceeds from long-term debt and other Repayments of long-term debt and other Principal repayments of finance leases Principal repayments of financing obligations Net cash provided by (used in) financing activities Foreign currency effect on cash, cash equivalents, and restricted cash Net increase (decrease) in cash, cash equivalents, and restricted cash CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD SUPPLEMENTAL CASH FLOW INFORMATION Cash paid for interest on long-term debt Cash paid for operating leases Cash paid for interest on finance leases Cash paid for interest on financing obligations Cash paid for income taxes, net of refunds Assets acquired under operating leases Property and equipment acquired under finance leases Property and equipment equired under bild-to-sit arrangements (11,955) 1,897 (13.972) 9.677 (12.731) (27,084) (13.427) 2,104 (2,186) 8,240 (7.100) (12,369) (16,861) 4,172 (2,461) 22,681 (31,812) (24,281) 2,273 (2,684) (9.628) 16,228 (1,301) (4,799) (200) 9,928 713 1,932 21,856 S 768 (668) (7.449) (337) (7.686) (351) 10,317 32,173 S (10.066) 70 4,237 36,410 $ $ 328 $ 854 5 875 3.361 200 119 957 381 194 1.184 39 881 7,870 13,723 1.362 9,637 3.541 10,615 3,641 + E AMAZON.COM, INC. CONSOLIDATED STATEMENTS OF OPERATIONS (in millions, except per share data) 2019 s Year Ended December 31, 2017 2018 118,573 S 141,915 5 59,293 90.972 177,866 232,887 160,408 120,114 280,522 Net product sales Net service sales Total net sales Operating expenses Cost of sales Fulfillment Technology and content Marketing General and administrative Other operating expense (income), net Total operating expenses Operating income Interest income Interest expense Other income (expense), net Total non-operating income (expense) Income before income taxes Provision for income taxes Equity-method investment activity, net of tax Net income Basic earnings per share Diluted earnings per share Weighted average shares used in computation of earnings per share: Basic Diluted 111,934 25,249 22,620 10,069 3,674 214 173,760 4,106 202 (848) 346 (300) 3,806 (769) 139,156 34,027 28,837 13,814 4,336 296 220,466 12,421 440 (1,417) (183) (1.160) 11,261 (1.197) 9 10,073 $ 20.68 $ 20.14 $ 165,536 40.232 35,931 18,878 5,203 201 265,981 14,541 832 (1.600) 203 (565) 13,976 (2,374) $ $ $ 3,033 6.32 6.15 $ 11,588 21.46 23.01 494 480 493 487 500 504 See accompanying notes to consolidated financial statements. AMAZON.COM, INC. CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (in millions) Year Ended December 31, 2017 2018 3,033 S 10,073 $ 2019 S 11.588 533 (538) 78 (108) (30) 533 (538) Net income Other comprehensive income (loss): Net change in foreign currency translation adjustments Foreign currency translation adjustments, net of tax of S5, S6, and S(5) Reclassification adjustment for foreign currency translation included in "Other operating expense (income), net," net of tax of SO, SO, and $29 Net foreign currency translation adjustments Net change in unrealized gains (losses) on available-for-sale debt securities: Unrealized gains (losses), net of tax of Ss. So, and S(12) Reclassification adjustment for losses (gains) included in "Other income (expense), net," net of tax of $0, SO, and SO Net unrealized gains (losses) on available-for-sale debt securities Total other comprehensive income (loss) Comprehensive income (39) (17) 83 (4) (32) 79 S01 (9) (547) 9,526 49 s 3,534 5 11.637 See accompanying notes to consolidated financial statements