Saved Selected data from the September 30, 2017, and September 24, 2016, consolidated balance sheets and income statements for the years then ended for Apple Inc. follow. All amounts are reported in millions Net sale Cost at Sales Research and development expenseu Selling general, and administrative expenses Operating Income Other SOGEA net PROV Lion for income taxe Ket income 2017 $229,234 141,046 11,581 15.261 2016 $215, 639 131,376 10,045 14,194 1,38 15,738 $ 48,351 $ 45,687 Required: a. Calculate the amount of Apple's gross profit for each year. Has gross profit as a percentage of sales changed significantly during the past year? 6. Calculate the amount of Apple's operating income for each year, Has operating income as a percentage of sales changed significantly during the past year? c. After completing requirements a and b. calculate the other missing amounts for each year. Indicate the financial statement effect. Complete this question by entering your answers in the tabs below. Read A Required B Required Calculate the amount of Apple's operating income for each year. Has operating income as a percentage of les changed significantly during the past year (Enter your answers in millions of dollars) Da uning no lo 2017 On como for 2016 orango in Deathcome as poeage of at least Cagu A R>