The following costs result from the production and sale of 4,050 drum sets manufactured by Tight Drums Company for the year ended December 31, 2017. The drum sets sell for $255 each. The company has a 30% income tax rate. Variable production costs 72,900 336, 150 109,356 Plastic for casing Wages of assembly workers Drum stands Variable selling costs Sales commissions 64,800 Fixed manufacturing costs 10, 500 21,000 81,000 Taxes on factory Factory maintenance Factory machinery depreciation Fixed selling and administrative costs Lease of equipment for sales staff Accounting staff salaries Administrative management salaries 21,000 71,900 151,000 Required: 1. Prepare a contribution margin income statement for the compan . Compute its contribution margin per unit and its contribution man rato Total variable costs Contribution margin Total fixed costs Required 2> 1 of Compute its contribution margin per unit and its contribution margin ratio. (Round Contribution margin ratio to nearest whole percentage.) TIGHT DRUMS COMPANY Contribution Margin Income Statement (partial) For Year Ended December 31, 2017 Per Unit Sales Variable costs Total variable costs Contribution margin 1 of 1 11:0 Prepare a contribution margin income statement for the company TIGHT DRUMS COMPANY Contribution Margin Income Statement For Year Ended December 31, 2017 Sales Variable costs Total variable costs Contribution margin Fixed costs