Dinshaw Company is considering the purchase of a new machine. The invoice price of the machine is $77,702, freight charges are estimated to be $2.940, and installation costs are expected to be $7,840. The annual cost savings are expected to be $14,400 for 10 years. The firm requires a 22% rate of return. Ignore income taxes. What is the internal rate of return on this investment? (Round answer to O decimal places, eg. 15%) Click here to view PV table. Internal rate of return 6 %