Exercise 12-15 Internal Rate of Return and Net Present Value [LO12-2, LO12-3] Henries Drapery Service is investigating the purchase of a new machine for cleaning and blocking drapes. The machine would cost $171,650, including freight and installation. Henries estimated the new machine would increase the companys cash inflows, net of expenses, by $50,000 per year. The machine would have a five-year useful life and no salvage value. Click here to view Exhibit 12B-1 and Exhibit 12B-2, to determine the appropriate discount factor(s) using table. Required: 1. What is the machines internal rate of return? (Round your final answer to the nearest whole percentage.) 2. Using a discount rate of 14%, what is the machines net present value? 3. Suppose the new machine would increase the companys annual cash inflows, net of expenses, by only $44,130 per year. Under these conditions, what is the internal rate of return? (Round your final answer to the nearest whole percentage.)