EX 20-9 Contribution margin ratio a. Coastal Company budgets sales of $38,600,000, fixed costs of $5,000,000, and variable costs of $23,932,000. What is the contribution margin ratio for Coastal Company? b. If the contribution margin ratio for Bushner Company is 48%, sales were $50,000,000, and fixed costs were $18,400,000, what was the operating income