Depreciation by Three Methods; Partial Years Perdue company purchased equipment on April 1 for $35,100. The equipment was expected to have a useful life of three years, or 3,780 operating hours, and a residual value of 51,080. The equipment was used for 700 hours during Year 1, 1,300 hours in Year 2, 1,100 hours in Year 3, and 680 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) the units-of-activity method, and (c) the double-declining-balance method. Note: FOR DECLINING BALANCE ONLY, round the final 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 8,505 Year 2 11,340 Year 3 11,340 Year 4 2,835 b. Units of activity method Year Amount Year! 6,300 Year 2 11,700 Year 2 11,340 Year 3 11,340 Year 4 2,835 b. Units-of-activity method Year Amount Year 1 6,300 Year 2 11,700 Year 3 9,900 Year 4 6,120 C. Double-declining-balance method Year Amount Year 1 X Year 2 11,700 Year 3 2,130 X Year 4 1,050 x