Financial statements of Walmart, Inc. are presented in Appendix E. Click here to view Appendix E. (b) What conclusions concerning the relative profitability of the two companies can be drawn from the following data? Amazon.com Walmart (1) Profit margin 5.5% 2.4% (2) Gross profit (millions) $152,757 $134,918 (3) Gross profit rate 39.6% 24.3% (4) Operating income (000's) $22,899 $22,548 (5) Percent change in operating income 57.5% 9.6%