2. Denver Doors produces wooden doors, which it sells for $50 per unit. The company's forecast income statement for October 20Y9 is as follows: Denver Doors: income statement for October 20Y9 Sales revenue (2,000 doors @ $50 per unit) 100,000 Variable cost of goods sold (2,000 doors @ $20 per unit) (40,000) Gross margin 60,000 Administrative salaries (15,000) Shipping and handling expense (2,000 doors @ $1 per unit) (2,000) Variable selling overheads ($4 for each door sold) (8,000) Fixed advertising expenses (20,000) Depreciation of administrative office furniture (5,000) Net income 10.000 quired: Prepare a revised income statement for October 20Y9 using the contribution margin format nt: you will need to classify costs according to whether they are variable or fixed in nature)