Denreciation by Three Methods; Partial Years Perdue Company purchased equipment on October 1 for $56,890. The equipment was expected to have a useful life of three years, or 7,900 operating hours, and a residual value of $1,590. The equipment was used for 1,400 hours during Year 1,2,800 hours in Year 2,2,400 hours in Year 3 , and 1,300 hours in Year 4 . Required: Determine the amount of depreciation exponse for the years ended December 31, Year 1 , Year 2 , Year 3 , and Year 4, by (a) the stralghi-line inethod, (b) the units-ofactivity 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 Note: Round all final values for each depreciation method and each year to the nearest whole dollar. a. Straight-line method b. Units-of-activity method c. Double-declining-balance method