s Bicycle Shop sells 21-speed bicycles. For purposes of a cost-volume-profit analysis, the shop owner has divided sales into two categories, as follows: Product Type Sales Price Invoice Cost Sales Commission High-quality $ 1,800 $ 950 $ 40 Medium-quality 1,000 670 20 Three-quarters of the shops sales are medium-quality bikes. The shops annual fixed expenses are $234,900. (In the following requirements, ignore income taxes.) Required: 1. Compute the unit contribution margin for each product type. 2. What is the shops sales mix? 3. Compute the weighted-average unit contribution margin, assuming a constant sales mix. 4. What is the shops break-even sales volume in dollars? Assume a constant sales mix. 5. How many bicycles of each type must be sold to earn a target net income of $130,500? Assume a constant sales mix.