S21-10 Complete the calculations using the information provided for each scenario. (pp. 1058-1061) A B C Number of units 1,000 3,000 8,000 Sale price per unit 10 16 30 Variable costs per unit 6 8 21 Total fixed costs 50,000 21,000 180,000 Target operating income 50,000 70,000 90,000 Calculate: Contribution margin per unit Contribution margin ratio - Breakeven point in units Breakeven point in sales dollars Units to achieve target operating income