Depreciation Methods On January 2, Alvarez Company purchased an electroplating machine to help manufacture a part for one of its key products. The machine cost $218,700 and its estimated useful life was 6 years or 700,000 cuttings, after which it could be sold for $23,400 Required a. Calculate each years depreciation expense for the period 2012-2017 under each of the following depreciation methods: (Round all answers to the nearest dollar.) a. Straight-line. b. Double-declining balance. c. Units-of-production. Assume annual production in platings of: 140,000 Yr. 2012 180,000 Yr. 2013 100,000 Yr. 2014 110,000 Yr. 2015 80,000 Yr. 2016 90,000 Yr. 2017 700,000