Exercise 20-11 Mars Company manufactures and sells three products. Relevant per unit data concerning each product are given below Product Selling price Variable costs and expenses Machine hours to produce $9 $3 $12 $10$12 $15 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. 1.25.) Product A Product B Product Contribution margin per unit of limited resource LINK TO TEXT Assuming 3,000 additional machine hours are available, which product should be manufactured