Analyze Amazon.com Amazon.com, Inc. (AMZN) is the largest Internet retailer in the United States. Amazon's operating income taken from its income statements for two recent years is as follows (in millions): Revenues: For the Years Ended December 31 (in millions) Product sales Service sales Amazon.com, Inc. Operating Income Total revenues Operating expenses: Cost of sales Fulfillment Technology and content Marketing General, administrative, and other Total operating expenses Operating income Required: P Year 2 Year 1 $241,787 $215,915 228,035 170,149 $469,822 $386,064 $(272,344) $(233,307) (75,111) (58,517) (56,052) (42,740) (32,551) (22,008) (8,885) (6,593) $(444,943) $(363,165) $24,879 $22,899
mazon.com, Inc. (AMZN) is the largest Internet retailer in the United States. Amazon's operating income taken from its income tatements for two recent years is as follows (in millions): b. Use the vertical analysis to explain the increase in operating income. The vertical analysis indicates that the mix of revenues from Year 1 to Year 2. Product sales while service sales in total revenues, Operating expenses slightly in total revenues with the result that operating income in total revenues. Of the operating expenses, marketing in total 
