Comparing Three Depreciation Methods Waylander Coatings Company purchased waterproofing equipment on January 6 for $502,200. The equipment was expected to have a useful life of four years, or 9,600 operating hours, and a residual value of $41,400. The equipment was used for 3,600 hours during Year 1, 3,000 hours in Year 2, 1,700 hours in Year 3, and 1,300 hours in Year 4. Required:
Determine the amount of depreciation expense for the years ended December 31, Year 1, Year 2, Year 3, and Year 4, by (a) the straight-line method, (b) the units-of-activity method, and (c) the double-declining-balance method.