Exercise 12-15 Internal Rate of Return and Net Present Value (LO12-2, LO12-3] Henrie's Drapery Service is investigating the purchase of a new machine for cleaning and blocking drapes. The machine would cost $170,595, including freight and installation. Henrie's estimated the new machine would increase the company's cash inflows, net of expenses, by $45,000 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 machine's internal rate of return? (Round your final answer to the nearest whole percentage.) 2. Using a discount rate of 10%, what is the machine's net present value? 3. Suppose the new machine would increase the company's annual cash inflows, net of expenses, by only $40,500 per year. Under these conditions, what is the internal rate of return? (Round your final answer to the nearest whole percentage.)