Contribution Margin and Contribution Margin Ratio For a recent year, Wicker Company-owned restaurants had the following sales and expenses (in millions): Assume that the variable costs consist of food and packaging; payroll; and 40% of the general; selling, and administrative expenses. a. What is Wicker Company's contribution margin? Round to the nearest million. (Give answer in millions of dollars.) million b. What is Wicker Company's contribution margin ratio? Round your answer to one decimal place. c. How much would income from operations increase if same-store sales increased by $1,100 million for the coming year, with no change in the contribution mard million