Economics A lumber company purchased a wood chipper for $150,000 and spent $50,000 to install the wood chipper. The chipper is classified as MACRS 7-year property. It's useful life is 10 years. The estimated salvage value at the end of 10 years is $25,000. a. The MACRS depreciation for year 9 is: b. The book value at year 11 is: Need: setup, calculations