Contribution Margin and Contribution Margin Ratio For a recent year, McDugal's company owned restaurants had the following sales and expenses (in millions): Sales $14,400 Food and packaging $5,976 Payroll 3,800 Occupancy (rent, depreciation, etc.) 2,424 General, selling, and admin, expenses 2,200 Other expense 290 Total expenses (14,690) Operating income foss) $(290) Assume that the variable costs consist of food and packaging oll, and of the general, selling, and administrative expenses a. What is McDonald's contribution margin? Enter your answer in million, rounded to one decimal place. million b. What is McDonald's contribution margin ratio? Round your percentage answer to one decimal place. How much would operating income increase it same-store sales increased by $900 million for the coming year, with no change in the contribution margin ratio or Pixed costs? mon d. What would have been the operating income or loss for the recent year if sales had been $900 million more? million .. To achieve break even for the recent year, by how much would sales need to increase Enter your anwer in million rounded to the nearest whole number mision