Depreciation by Three Methods; Partial Years Perdue Company purchased equipment on April 1 for $29,970. The equipment was expected to have a useful life of three years, or 6,480 operating hours, and a residual value of $810. 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. Note: FOR DECLINING BALANCE ONLY, round the multiplier to four decimal places. Then round the answer for each year to the nearest whole dollar. c. Double-declining-balance method Year Amount Year 1 $ 14,985 X Year 2 $ 9,990 Year 3 3,330 X Year 4 $ 855