The condensed income statements through operating income for Amazon.com, Inc. (AMZN), Best Buy Co., Inc. (BBY), and Wal-Mart Stores, Inc. (WMT), for a recent fiscal year follow (in millions): Amazon Best Buy Wal-Mart Sales $135,987 $ 39,403 $ 485,873 Cost of sales (88,265) (29,963) (361,256) Gross profit $ 47,722 $ 9.440 $ 124,617 Selling, general, and administrative expenses (43,369) (7,547) (101,853) Operating expenses (167) (39) Operating income $ 4,186 $1,854 $ 22,764 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 subtracted or negative numbers use a minus sign Comparative Income statements Amazon Best Buy Wal-Mart Sales Cost of sales Gross pront Selling, general, and administrative expenses 31.9% Operating expenses 0.12 X 0.10 Operating income 3.1 %