E25-15 Making product mix decisions Short Tread Mile produces two types of exercise treadmills: regular and deluxe. The exercise craze is such that Tread Mile could use all its available machine hours to produce either for both models are as follows: model. The two models are processed through the same production departments. Data Per Unit Sales Price Deluxe Regular Costs: $ 1,040 $ 570 Direct Materials 300 Direct Labor 90 78 190 Variable Manufacturing Overhead 276 92 Fixed Manufacturing Overhead* 120 40 Variable Operating Expenses 115 67 Total Costs 889 479 Operating Income $ 151 $ 91 * allocated on the basis of machine hours Requirements 1. What is the constraint? 2. Which model should Tread Mile produce? (Hint: Use the allocation of fixed manufacturing overhead to determine the proportion of machine hours used by each product.) 3. If Tread Mile should produce both models, compute the mix that will maximize operating income. no sales mix decisions priced fashion accessories. Top management is Mal