For a recent year, McDugal's company-owned restaurants had the following sales and expenses (in Millions): Sales $30,000 $8,160 8,000 Food and packaging Payroll Occupancy (rent, depreciation, etc.) General, selling, and admin. expenses Other expense 9,240 4,600 600 Total expenses (30,600) $(600) Operating income (loss) Assume that the variable costs consist of food and packaging, payroll, and 40% 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 % C. How much would operating income increase if same-store sales increased by $1,800 million for the coming year, with no change in the contribution fixed costs? million Assume that the variable costs consist of food and packaging, payroll, and 40% 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. %