Amazon. Com, Inc, is the largest Internet retailer in the United States. Amazon's income statements through income from operations for two recent years follow:

A. Prepare a horizontal analysis of the operating income statements, (Round percentages to one decimal place.)
B. Interpret the results of the horizontal analysis.

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Amazon.com, Inc. Operating Income Statements For the Years Ended December 31 (in millions) Year 1 70,080 $60,903 18,908 13549 $88,988 $74452 $62,752 $54,181 8,585 3,133 6,565 1,129 114 $88,810 $73,707 178 745 Year 2 Product sales Total sales Cost of sales.... Technology and content General and administrative Other operating expense (income), net 10,766 4,332 9,275 1,552 133 Total operating expenses. Income from operations