Wardell Company purchased a mainframe on January 1, 2016, at a cost of $58,000. The computer was depreciated using the straight- line method over an estimated five-year life with an estimated residual value of $16,000. On January 1, 2018, the estimate of useful life was changed to a total of 10 years, and the estimate of residual value was changed to $2,200. Required: 1. Prepare the year-end journal entry for depreciation in 2018. No depreciation was recorded during the year. 2. Prepare the year-end journal entry for depreciation in 2018. Assume that the company uses the sum-of-the-years' -digits method instead of the straight-line method. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Prepare the year-end journal entry for depreciation in 2018. No depreciation was recorded during the year. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list Journal entry worksheet Record depreciation expense. Note: Enter debits before credits. Event General Journal Debit Credit