The following costs result from the production and sale of 4,850 drum sets manufactured by Tight Drums Company for the year ended December 31, 2017 The drum sets sell for $335 each. The company has a 30% income tax rate. Variable production costs Plastic for casing Wages of assembly workers Drum atands $164,900 480,150 208, 550 Variable selling costs 155,200 Fixed manufacturing Csts Taxea on factory Factory maintenance Factory machinery depreciation 6, 500 13,000 73,000 Fixed selling and administrative costa Lease of equipment for sales staff Accounting staff salaries Adminiatrative management salaries 13, 000 63,000 143,000 Required 1. Prepare a contribution margin income statement for the company. 2. Compute its contribution margin per unit and its contribution margin ratio Complete this question by entering your answers in the tabs below. mework Compute its contribution margin per unit and its contribution margin ratio. (Round Contribution margin ratio to nearest whole percentage.) TIGHT DRUMS COMPA NY Contribution Margin Income Statement (partial) 31, 2017 Per Unit Sales Variable costs: Total variable costs Contribution margin Prev 1 of 6 EE Next >