For a recent year, McDonald's (MCD) company-owned restaurants had the following sales and expenses (in millions): Assume that the variable costs consist of food and paper, poyroil, 25% of occuponcy and other expenses, and 40% of the general, seling, and administrative expenses. a. What is McDonald's contribution margia? milisen b. What is McDonalds contribition margin ratio? Round to one decimal place. 3 c. How much would operating income increase if same-store sales increaced ay s8oo malon for the coming yeec, with no change in the contribution margin ratio or fixed costs? Round your answer to the nearest tenth of a miliion (one decimal place). million