Swifty Company manufactures and sells three products. Relevant per unit data concerning each product are given below. Compute the contribution margin per unit of limited resource (machine hours) for each product. (Round contribution margin per unit to 2 decimal places, es. 1.50 .) Assuming 3,000 additional machine hours are available, which product should be manufactured? What is the total contribution margin if the additional hours are (1) divided equally among the products, and (2) if they are allocated entirely to the product identified above