Depreciation by Three Methods; Partial Years Perdue Company purchased equipment on April 1 for $86,670. The equlpment was expected to have a useful life of three years, or 6,480 operating hours, and a residual value of $2,430. The equipment was used for 1,200 hours during Year 1, 2,300 hours in Year 2, 1,900 hours in Year 3, and 1,080 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) units-of-output method, and (c) the double-declining-balance method. r A. Straight-line method Year AmountYear 1 21,060 Year 2 28,080Year 3 28,080Year 4 7,020 B. Units-of-output method Year Amount Year 1 15,600Year 2 29,900Year 3 24,700