Contribution Margin and Contribution Margin Ratio For a recent year, McDooley's, a family-owned group of restaurants, had the following sales and expenses: Sales for all restaurants $412,000 Food and paper $117,600 Payroll and employee benefits 98,600 Occupancy and other expenses 81,220 Selling, general, and administrative expenses 56,900 Other operating expenses 24,720 Net operating expenses (379,040) Operating income (loss) $32,960 Assume that the variable costs consist of food and paper, payroll and employee benefits, and 40% of the selling, general, and administrative expenses. a. What is McDooley's contribution margin? $fill in the blank 1 b. What is McDooley's contribution margin ratio? Round your percentage answer to one decimal place. fill in the blank 2 % c. How much would operating income increase if the stores sales increased by $8,200 for the coming year, with no change in the contribution margin ratio or fixed costs? $fill in the blank 3 d. What would have been the operating income or loss for the recent year if sales had been $8,200 more? $fill in the blank 4