Current Attempt in Progress Dinshaw Company is considering the purchase of a new machine. The invoice price of the machine is $58,764, freight charges are estimated to be $2,750, and installation costs are expected to be $7,360. The annual cost savings are expected to be $14,250 for 10 years. The firm requires a 21% rate of return. Ignore income taxes. What is the internal rate of return on this investment? (Round answer to decimal places, s. 15%) Internal rate of retur %