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 $57,760. Type of Return Easy Moderate Business Sales Mix Fee Charged 401 $60 201 140 340 Variable Cont per Return $40 80 200 Total per unit (1) Determine the weighted average contribution margin. Sales mix Contribution margin per return Easy 40% Moderate 20% Business 40% Weighted average contribution margin (2) Determine the brain point in units using the walghted average contribution margin. Numerator 1 Denominator Break Even Units Break even units (2) Determine the break-even point in units using the welghted-average contribution margin. Numerator: 1 Denominator: 1 Break Even Units Break even units Units sales at the break-even point (3) Determine the number of units of each product that will be sold at the break-oven point Sales mix Number of units to break even Easy Moderate Business