a special power tool for plastic products costs $400,000 and has a 4- year useful life, no salvage value, and a 2-year before-tax payback 12-28 period. assume uniform annual end-of-year benefits. a (a) compute the before-tax rate of return. (b) compute the after-tax rate of return, based on macrs depreciation and a 24% combined corporate income tax rate.
