Dexter Industries purchased packaging equipment on January 8 for $268,200. The equipment was expected to have a useful life of four years, or 6,000 operating hours, and a residual value of $22,200. The equipment was used for 2,100 hours during Year 1, 1,260 hours in Year 2, 1,680 hours in Year 3, and 960 hours in Year 4. Required: 1. Determine the amount of depreciation expense for the four years ending December 31 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 four years by each method. Round the answer for each year to the nearest whole dollar. Depreciation Expense Units-of-Activity Straight-Line Method Method Year Double-Declining- Balance Method Year 1 Year 2 $ Year 3 $ Year 4 $ $ $ Total 2. What method yields the highest depreciation expense for Year 1? 3. What method yields the most depreciation over the four-year life of the equipment