Depreciation by Three Methods: Partial Years Layton Company purchased tool sharpening equipment on October 1 for $19,950. The equipment was expected to have a useful life of three years or 5,400 operating hours, and a residual value of $1,350. The equipment was used for 1,000 hours during Year 1, 1,900 hours in Year 2, 1,600 hours in Year 3 and 900 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 multiplier to four decimal places. Then round the answer for each year to the nearest whole dollar Straightne method Year Amount Year Year 2 Year Units of activity method Year Check My Work