I am not sure how I am getting the answer wrong.

Contribution Margin and Contribution Margin Ratio For a recent year, McDonald's (MCD) company-owned restaurants had the following sales and expenses (in millions): Sales $16,488 Food and packaging $5,552 Payroll 4,400 Occupancy (rent, depreciation, etc.) 4,025 General, selling, and admin. expenses 2,434 Other expense 209 Total expenses (16,620) Operating income (loss) $(132) Assume that the variable costs consist of food and packaging, payroll, and 45% of the general, selling, and administrative expenses. a. What is McDonald's contribution margin? Enter your answer in million, rounded to one decimal place. s- v b. What is McDonald's contribution margin ratio? Round your percentage answer to one decimal place. 33 ./ % c. Use the rounded contribution margin ratio value to answer the following question: how much would operating income increase if same-store sales increased by $500 million for the coming year, with no change in the contribution margin ratio or fixed costs? $- d. What would have been the operating income or loss for the recent year if sales had been $500 million more? SEE J million e. Use the rounded contribution margin ratio value to answer the following question: To achieve break even for the recent year, by how much would sales need to increase? $- X million