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%.) $ 1,400 units 1,500 900 $ 14,540 units 4,600 2,760 $ 2,800 units 160 80 Number of units Sale price per unit Variable costs per unit Calculate: Contribution margin per unit Total contribution margin Contribution margin ratio z = 5.5 % %