Cullumber 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 $185,000, has an estimated useful life of 7 years and a salvage value of zero, and will increase net annual cash flows by $40.540. Clickhere to view pV table What is its approximate internal rate of return? (Round answer to 0 decimal ploces, e. 13\%) Internat rate of return 16