REAL WORLD years follows: Amazon.com, Inc. Operating Income Statements For the Years Ended December 31 (in millions) Year 2 Year 1 $70,080 $60,903 18908 13,549 588,988 $74,452 $62,752 $54,181 Cost of sales 8,585 Fulfillment.. Marketing.. Technology and content General and administrative Other operating expense (income), net 10,766 4,332 3,133 6,565 9,275 1552 1,129 114 133T $88810 $73.707 5 178 745 A. Prepare a horizontal analysis of the operating income statements. (Round percentages to one decimal place.) Interpret the results of the horizontal analysis. B