Depreciation by Three Methods; Partial Years Perdue Company purchased equlpment on April 1 for $58,350. The equipment was expected to have a useful life of three years, or 8,100 operatin hours, and a residual value of $1,650. The equipment was used for 1,500 hours during Year 1,2,800 hours in Year 2,2,400 hours in Year 3, and 1,400 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-ilne method, (b) the units-of-activity method, and (c) the double-declining-balance method. Note: Round all final values for each depreciation method and each year to the nearest whole dollar. b. Units-of-activity method c. Double-declining-balance method