The following information ($ in millions) comes from a recent annual report of Amazon.com, Inc.: Net sales Total assets End of year balance in cash Total stockholders' equity Gross profit (Sales - Cost of Sales) Net increase in cash for the year Operating expenses Net operating cash flow Other income (expense), net Compute Amazon's cost of goods sold for the year. $10,753 4,385 1,118 432 2,503 12 2,065 612 (23)