Contribution margin and contribution margin ratio For a recent year, MeDonald's (MCD) company-owned restaurants had the following sales and expenses (in millions): Assume that the varab couts consist of food and poper, payrofi, 25\% of occupancy and other expenses, and 40% of the general, setling, and administrative expensas. a. What is McDoinaid's contribution margin? milion. b. What is McDonalds contribution margin rabof Round to one decimal place. c. How mach would operating income increg if if same-store sales incmease sy 51,000 fililion for the coming yeac, with no change in the contribution margin Round your answer to the nearest tenth of a million (one decimat place) inilion