The following costs result from the production and sale of 4,650 drum sets manufactured by Tight Drums Company for the year ended December 31. The drum sets sell for $315 each. Variable costs Plastic for casing $ 139,500 Wages of assembly workers 441,750 Drum stands 181,350 Sales commissions 130,200 Fixed costs Taxes on factory 8,500 Factory maintenance 17,000 Factory machinery depreciation 77,000 Lease of equipment for sales staff 17,000 Accounting staff salaries 67,000 Administrative salaries 147,000 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. Required 1 Required 2 Required 3 Prepare a contribution margin income statement for the year. Sales Variable costs: Contribution margin Fixed costs Required 2 ) The following costs result from the production and sale of 4,650 drum sets manufactured by Tight Drums Company for the year ended December 31. The drum sets sell for $315 each. Variable costs Plastic for casing $ 139,500 Wages of assembly workers 441,750 Drum stands 181,350 Sales commissions 130,200 Fixed costs Taxes on factory 3,500 Factory maintenance 17,000 Factory machinery depreciation 77,000 Lease of equipment for sales staff 17,000 Accounting staff salaries 67,000 Administrative salaries 147,000 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. Required 1 Required 2 Required 3 Compute contribution margin per unit and contribution margin ratio. (Round Contribution margin ratio to nearest whole percentage.) Contribution margin per unit Contribution margin ratio %