Sandhill Company manufactures and sells three products. Relevant per unit data concerning each product are given below. Product A B Selling price $11 $12 $16 Variable costs and expenses $5 $10 $13 Machine hours to produce 2 1 2 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.) Contribution margin per unit of limited resource $ Product A Product B Pi