Kanye Company is evaluating the purchase of a rebuilt spot-welding machine to be used in the manufacture of a new product. The machine will cost $172,000, has an estimated useful life of 7 years, a salvage value of zero, and will increase net annual cash flows by $37,688. Click here to view PV table. What is its approximate internal rate of return? (Round answer to decimal place, e.g. 125.) Internal rate of return %