Wendells Donut Shoppe is investigating the purchase of a new $31,300 donut-making machine. The new machine would permit the company to reduce the amount of part-time help needed, at a cost savings of $5,300 per year. In addition, the new machine would allow the company to produce one new style of donut, resulting in the sale of 1,300 dozen more donuts each year. The company realizes a contribution margin of $3.00 per dozen donuts sold. The new machine would have a six-year useful life.

Find the internal rate of return promised by the new machine to the nearest whole percent.

Choose Numerator	/	Choose Demonator	=	Factor	Number of Years	Internal rate of return
?	/	?	/		?	?
?	/	?	/		?	?

Fill in Question Marks

In addition to the data given previously, assume that the machine will have a $12,820 salvage value at the end of six years. Under these conditions, compute the internal rate of return to the nearest whole percent. (Round your final answer to nearest whole percentage.)