Analyze and compare Amazon.com, Best Buy, and Walmart The condensed income statements through operating income for Amazon.com, Inc. (AMZN), Best Buy Co., Inc. (BBY), and Walmart Inc. (WMT) for a recent fiscal year follow (in millions): Sales Cost of sales Gross profit Selling, general, and administrative expenses Operating expenses Operating income (100,244) (201) $14,541 Amazon Best Buy Walmart $280,522 $43,638 $523,964 (165,536) (33,590) (394,605) $114,986 $10,048 $129,359 (108,791) (7,998) (41) $2,009 0 $20,568 1. Prepare comparative common-sized income statements for each company. Round percentages to one decimal place. If percentages is zero, enter "0". For those boxes in which you must enter subtractive or negative numbers use a minus sign. (Example: -300) Comparative Income statements Line Item Description Amazon Best Buy Walmart Sales 100 % 100 % 100 % Cost of sales % % % Gross profit % % % Selling, general, and administrative expenses % % % Operating expenses % % % Operating income % % %