Required information [The following information applies to the questions displayed below. Wardell Company purchased a mini computer on January 1, 2019, at a cost of $40,000. The computer has been depreciated using the straight-line method over an estimated five-year useful life with an estimated residual value of $4,000. On January 1, 2021, the estimate of useful life was changed to a total of 10 years, and the estimate of residual value was changed to $900. 2. Prepare the appropriate adjusting entry for depreciation in 2021 to reflect the revised estimate, assuming that the company uses the sum-of-the-years-digits method instead of the straight-line method. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Do not round intermediate calculations and round your final answers to nearest whole dollar.) Answer is complete but not entirely correct. No Event Debit Credit 1 1 General Journal Depreciation expense Accumulated depreciation 3,088 X 3.088 x