AllTreads produces two types of exercise treadmills: Regular and Deluxe. The exercise craze and related demand is such that AllTreads could use all of its available machine hours producing either model. The two models are processed through the same production department. B (Click the icon to view the data.) What product mix will maximize operating income? (Hint: Use the allocation of fixed manufacturing overhead to determine the proportion of machine hours used by each product.) Prepare the product mix analysis. AllTreads Product Mix Analysis Deluxe Sale price per unit $ Regular 530 1,050 $ Variable costs per unit Contribution margin per unit Units produced with equivalent number of machine hours Contribution margin for equivalent number of machine hours Per Unit Deluxe Regular 530 $ Sale price 1,050 $ Less expenses: Direct materials 300 120 84 176 Direct labor Variable manufacturing overhead 180 Fixed manufacturing overhead* 92 117 Variable operating expenses 773 $ 499 Total expenses 277 $ Operating income *Allocated on the basis of machine hours