Comparing Three Depreciation Methods Dexter Industries purchased packaging equipment on January 8 for $252,800. The equipment was expected to have a useful life of four years, or 8,000 operating hours, and a residual value of $20,800. The equipment was used for 2,800 hours during Year 1, 1,680 hours in Year 2, 2,240 hours in Year 3, and 1,280 hours in Year 4. Required: 1. Determine the amount of depreciation expense for the four years ending December