Ivanhoe Company is evaluating the purchase of a rebulit spot-welding machine to be used in the manufacture of a new product. The machine will cost $163000, has an estimated useful life of 7 years and a salyage volue of zero, and will increase net annual cash flows by $34.595. Click here to view PV table What is its approximate internal rate of return? (Round answer to 0 decimol ploces, es. 13\%) Internal rate of return