The condensed statement of comprehensive incomes through operating profit for Dell Inc. and Apple Inc. are reproduced below for recent fiscal years (numbers in millions of dollars). Dell Inc. Apple Inc. Sales (Net) Cost of Sales $64,494 $69,225 51,208 40,981 Gross Profit $13,286 $28,244 Selling and general Expenses $8,577 $6,091 Research and Development 838 2,769 Operating Expenses 9,415 8,860 Operating Profit $3,871 $19,384 Required: a. Prepare comparative common-sized statements, rounding percent to one decimal place. b. Analyzes and interpret the data presented in (a). (7 marks) (8 marks)