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EXHIBIT 12B-1 Present Value of \\( \\$ 1 ; \\frac{1}{(1+r)^{n}} \\) EXHIBIT 12B-2 Present Value of an Annuity of \\( \\$ 1 \\) in Arrears; \\( 1 / r\\left(1-\\left(1 /(1+r)^{\\wedge} n\ ight)\ ight) \\) 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 and to determine the appropriate discount factor(s) using table. Required: 1. What is the machine's internal rate of return? (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? (Round your answer to the nearest whole percentage, i.e. 0.123 should be considered as \12.)