Problem 7-16 (Algo) Level versus seasonal production [LO7-5] Wisconsin Snowmobile Corporation is considering a switch to level production. Cost efficiencies would occur under level production, and aftertax costs would decline by $31,500, but inventory would increase by $450,000. Wisconsin Snowmobile would have to finance the extra inventory at a cost of 8.0 percent. a-1. Determine the extra cost or savings of switching over to level production. b. How low would interest rates need to fall before level production would be feasible? Note: Input your answer as a percent rounded to the nearest whole number