Comparing Three Depreciation Methods Dexter Industries purchased packaging equipment on January 8 for $631,800. The equipment was expected to have a useful life of three years, or 8,400 operating hours, and a residual value of $52,200. The equipment was used for 3,200 hours during Year 1, 2,600 hours in Year 2, and 1,500 hours in Year 3. Required: 1. Determine the amount of depreciation expense for the three years ending December 31, Year 1, Year 2, Year 3, by (a) the straight-line method, (b) the units-of-activity method, and (c) the double-declining-balance method. Also determine the total depreciation expense for the three years by each 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.