Exercise 13-3 Internal Rate of Return [LO13-3] Wendell's Donut Shoppe is investigating the purchase of a new $18,600 donut-making machine. The new machine would permit the company to reduce the amount of part-time help needed, at a cost savings of $3,800 per year. In addition, the new machine would allow the company to produce one new style of donut, resulting in the sale of 1,000 dozen more donuts each year. The company realizes a contribution margin of $1.20 per dozen donuts sold. The new machine would have a six-year useful life. Click here to view Exhibit 13B-1 and Exhibit 13B-2, to determine the appropriate discount factor(s) using tables. Required: 1. What would be the total annual cash inflows associated with the new machine for capital budgeting purposes? Annual savings in part-time help Added contribution margin from expanded sales Annual cash inflows 2. Find the internal rate of return promised by the new machine to the nearest whole percent. Choose Numerator: Internal Rate of Return T Choose Denominator: = Factor = Factor Number of years Internal rate of return EXHIBIT 13B-2 Present Value of an Annuity of $1 in Arrears; 1/1 - aton EXHIBIT 13B-1 Present Value of $T; ( + pln