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.

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