The following costs result from the production and sale of 4,500 drum sets manufactured by Tight Drums Company for the year ended December 31. The drum sets sell for $300 each Variable ents Plastic for casing Wages of assembly workers Drue stands Sales commissions Fixed costs $121,500 414,000 162,000 112,500 Tanes on factory 15,000 Factory maintenance 30,000 Factory machinery depreciation 30,000 Lease of wipment for sales staff 30,000 Accounting staff salaries 50,000 Administrative salaries 160,000 Required: 1. Prepare a contribution margin income statement for the year. 2. Compute contribution margin per unit and contribution margin ratio 3. For each dollar of sales, how much is left to cover fixed costs and contribute to income? Complete this question by entering your answers in the tabs below.