Current Attempt in Progress Frost 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 $174,000, has an estimated useful life of 7 years and a salvage value of zero, and will increase net annual cash flows by $33,421. Click here to view PV table. What is its approximate internal rate of return? (Round answer to O decimal places, eg. 16%) Internal rate of return % eTextbook and Media