Perdue Company purchased equipment on April 1 for $67,500. The equipment was expected to have a useful life of three years, or 4,860 operating hours, and a residual value of $1,890. The equipment was used for 900 hours during Year 1, 1,700 hours in Year 2, 1,500 hours in Year 3, and 760 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.Note: FOR DECLINING BALANCE ONLY, round the multiplier to four decimal places. Then round the answer for each year to the nearest whole dollar.a. Straight-line methodYear AmountYear 1 $Year 2 $Year 3 $Year 4 $b. Units-of-output methodYear AmountYear 1 $Year 2 $Year 3 $Year 4 $c. Double-declining-balance methodYear AmountYear 1 $Year 2 $Year 3 $Year 4 $