help with this qestuin thanks so much!

For a recent year, Mcdonald's (MCD) company-owned restaurants had the following sales and expenses (in millions): Sales $17,400 Food and packaging $(4,866) Payroll (4,400) Occupancy (rent, depreciation, etc.) (5,114) General, selling, and administrative expenses (2,500) $(16,880) Operating income $520 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? Round to the nearest million. (Give answer in millions of dollars.) 5,634 X million b. What is Mcdonald's contribution margin ratio? 32.38 X % C. How much would operating income increase if same-store sales increased by $1,000 million for the coming year, with no change in the contribution margin ratio or fixed costs? Round your answer to the closest million. $ 323.8 X million