2. A lathe purchased by a machine tool company 9 years ago for $50,000 is expected to have the salvage values and operating costs shown below for additional years of service. It can be sold immediately for $9000 by placing an ad in a trade magazine. A replacement machine will cost $125,000, have a $10,000 salvage value after its 10 -year ESL, and have an AOC of $35,000 per year. At an interest rate of 15% per year, determine if the company should replace the defender with the challenger and, if so, when