4 Insiteful Instruments produces two models of binoculars. Information for each model is as follows: Model 196 Model 10:1 sales price per unit Costs and expenses per unit: s 200 s215 Direct materials Direct labor Manufacturing overhead $ 51 10 oints s 38 30 (applied at the rate of $18 per machine-hour, 1/3 of which is fixed and 2/3 variable) 36 3e 72 15 Variable selling expenses 155 $ 66 Total costs and expenses per unit Print $ 5e Profit per unit Machine-hours required to produce one unit Total manufacturing overhead amounts to $180,000 per month, one-third of which is fixed. The demand for either product is sufficient to keep the plant operating at full capacity (10,000 machine-hours per month), Assume that only one product is to be produced in the future. a. Prepare a schedule showing the contribution margin per machine-hour for each product. b. Which of the two products should be discontinued? a. Prepare a schedule showing the contribution margin per machine-hour for each product b. Which of the two products should be discontinued? Required A Required B Prepare a schedule showing the contribution margin per machine-hour for each product. Model 100 Model 101 Less variable costs and expenses Total costs and expenses