Comparing three depreciation methods Dexter Industries purchased packaging equipment on January 8 for $135,000. The equipment was expected to have a useful lfe of 3 years, or 27,000 operating hours, and a residual value of 55,400 . The equipment was used for 10,800 hours during Year 1, 8,100 hours in Year 2, and 8,100 hours in Year 3. Required: 1. Determine the amount of depreciation expense for the 3 years ending December 31 , by (a) the straight-line method, (b) the units-of-activity method, and (c) the doubledeclining-balance method. Aso determine the total depreciation expense for the 3 years by each method. Do not round intermediate calculations when determining the depreciation rate. Round the final answers for each year to the nearest whole dollar. 3. What method vielde the most deprecistion ever the 27ear life of the equipment