Wardell Company purchased a mini computer on January 1, 2014, at a cost of $43,400. The computer has been depreciated using the straight-line method over an estimated five-year useful life with an estimated residual value of $4,400. On January 1, 2016, the estimate of useful life was changed to a total of 10 years, and the estimate of residual value was changed to $600. Required 1. Prepare the appropriate adjusting entry for depreciation in 2016 to reflect the revised estimate. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list View journal entry worksheet No Event General Journal Debit Credit Depreciation expense 3,400 Accumulated depreciation 3,400