Mars Company manufactures and sells three products. Relevant per unit data concerning each product are given below. A B C Selling price $9 $12 $15 $3 $10 $12 Variable costs and expenses Machine hours to produce 2 1 2 (a) Compute the contribution margin per unit of limited resource (machine hours) for each product. (Round contribution margin per unit to 2 decimal places, e.g. 1.50.) Product A $ $ Contribution margin per unit of limited resource dodis