Complete the table below for contribution margin per unit, total contribution margin, and contribution margin ratio: (Click the icon to view the table.) Compute the missing information, starting with scenario A, then for scenarios B and C. (Enter the contribution margin ratio to nearest percent, X%.) A Number of units 1,663 units Sale price per unit $ 280 Variable costs per unit 70 Calculate: Contribution margin per unit Total contribution margin Contribution margin ratio % Data table A B C Number of units 1,663 units 31,800 units 4,620 units $ 280 $ 40 $ 5,550 Sale price per unit Variable costs per unit Calculate: 70 10 1,665 Contribution margin per unit Total contribution margin Contribution margin ratio Check