R&R Tax Service offers tax and consulting services to individuals and small businesses. Data for fees and costs for three types of tax returns follow. Fixed costs total $48,720. Variable Cost Type of Return Easy Sales Mix Fee Charged per Return Moderate 40% 10% $ 60 $ 40 140 80 Business 50% 340 200 (1) Determine the weighted-average contribution margin. Easy Moderate Business Sales mix Contribution margin per return Total per unit 40% 10% 50% Weighted-average contribution margin (2) Determine the break-even point in units using the weighted-average contribution margin. Numerator: 1 Denominator: Break Even Units = Break even units Sales mix (3) Determine the number of units of each product that will be sold at the break-even point. Number of units to break even. Units sales at the break-even point Easy Moderate Business