Check my work The following information ($ in millions) comes from a recent annual report of Amazon.com, Inc.: d Net sales Total assets End of year balance in cash Total stockholders' equity $10,770 4,490 1,197 348 Gross profit (Sales Cost of Sales) 2,541 Net increase in cash for the year 19 Operating expenses 2,062 Net operating cash flow 705 Other income (expense), net (18) ces Compute Amazon's balance in cash at the beginning of the year.