Sickimeler Revised Depreciation When originally purchased, a truck had cost $23,000, with an estimated residual value of $2,000, and an estimated useful life of 8 years. After 4 years of straight-line depreciation, the overall estimated useful life was revised from 3 to 6 years, but with zero residual value. Record year 5's December 31" year-end depreciation expense. Assume full year depreciation at all times. Dato Account Titles and Explanation PR Debit De 31 Credit Finish attempt