Dexter Industries purchased packaging equipment on January 8 for $834,600. The equipment was expected to have a useful life of four years, or 8,800 operating hours, and a residual value of $69,000. The equipment was used for 3,080 hours during Year 1, 1,848 hours in Year 2, 2,464 hours in Year 3, and 1,408 hours in Year 4.1. Determine the amount of depreciation expense for the four years ending December 31 by the double-declining-balance method. Also, determine the total depreciation expense for the four years

Depreciation Expense Units-of-Activity Straight-Line Method Method Year Double-Declining- Balance Method Year 1 191,400 $ 267,960 $ 417,300 Year 2 191,400 160,776 $ 208,650 Year 3 191,400 214,368 $ 104,325 Year 4 191,400 $ 122,496 $ 52,163 X Total 765,600 765,600