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 78-1 and Exhibit 78-2, to determine the appropriate discount factor(s) using table. Required: 1. What is the machine's internal rate of return? Note: Round your answer to the nearest whole percentage, i.e. 0.123 should be considered as 12%. 2. Using a discount rate of 10%, what is the machine's net present value? Interpret your results. 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? Note: Round your answer to the nearest whole percentage, i.e. 0.123 should be considered as 12%. The management of Unter Corporation, an architectural design firm, is considering an investment with the following cash flows: Required: 1. Determine the payback period of the investment. 2. Would the payback period be affected if the cash inflow in the last year were several times as large? Complete this question by entering your answers in the tabs below. Determine the payback period of the investment. Note: Round your answer to 1 decimal place