Exercise 21-8 Contribution margin LO A1 A jeans maker is designing a new line of jeans called Slims. The jeans will sell for $320 per pair and cost $220.80 per pair in variable costs to make. (Round your answers to 2 decimal places.) (1) Compute the contribution margin per pair. Sales Less: Variable cost Contribution margin (2) Compute the contribution margin ratio. Choose Choose Numerator: 1 1. Denominator: Contribution margin per unit ! Selling price per unit = Contribution Margin Ratio = Contribution margin ratio