Perdue Company purchased equipment on April 1 for $72,360. The equipment was expected to have a useful life of three years, or 7,020 operating hours, and a residual value of $2,160. The equipment was used for 1,300 hours during Year 1, 2,500 hours in Year 2, 2,100 hours in Year 3, and 1,120 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-activity 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 method Year Amount Year 1 17,550 Year 2 23,400 $ $ $ $ Year 3 23,400 Year 4 5,850 b. Units-of-activity method Year Amount Year 1 $ 13,000 Year 2 ta 25,000 Year 3 21,000 $ $ Year 4 11,200 c. Double-declining-balance method Year Amount Year 1 Year 2 $ $ $ $ Year 3 Year 4