Revenues $450,000 Cost of goods sold (all variable costs) 225,000 Gross margin 225,000 Operating costs: Salaries fixed $120,000 Sales commissions (9% of sales) 40,500 Depreciation on equipment and fixtures 15,000 Store rent ($4,000 per month) 48,000 Other operating costs 65,000 288,500 Operating income (loss) $(63,500) McCarthy Men's Clothing's revenues and cost data for 20172017 are as follows: LOADING... (Click the icon to view the data.) Mr. McCarthyMcCarthy, the owner of the store, is unhappy with the operating results. An analysis of other operating costs reveals that it includes $ 45 comma 000$45,000 variable costs, which vary with sales volume, and $ 20 comma 000$20,000 (fixed) costs. Read the requirements LOADING... . Question content area bottom Part 1 Requirement 1. Compute the contribution margin of McCarthyMcCarthy Men's Clothing. Determine the formula to calculate the contribution margin, then enter the amounts in the formula to compute the contribution margin of McCarthyMcCarthy Men's Clothing. Part 2 Revenues - Total variable costs = Contribution margin - =