chapter 21 Learning Objective 2 E21-32 Computing contribution margin in total, per unit, and as a ratio Complete the table below for contribution margin per unit, total contribution margin, C. CMR 40% and contribution margin ratio: A B C Number of units 1,800 units 9,790 units 1,410 units Sales price per unit $ 1,900 $ 500 $ 800 Variable costs per unit 1, 140 250 480 Calculate: Contribution margin per unit Total contribution margin Contribution margin ratio