On October 1, 2019, Cullumber Manufacturing Company purchased a piece of high-tech equipment for $90,200 cash. Cullumber estimated the equipment would have a 6-year useful life and a residual value of $8,600. The company uses straight-line depreciation and has a September 30 fiscal year end. On October 1, 2021, Cullumber paid $15,200 cash to upgrade the equipment. It is expected that the upgrade will significantly reduce the operating costs of the equipment. Cullumber also reviewed the equipment's expected useful life and estimated that, due to changing technology, the equipment's total expected useful life will be 4 years and its residual value will be $5,000. Calculate the annual depreciation expense for the first two years of the equipment's life. Annual depreciation expense per year Calculate the carrying amount of the equipment at September 30, 2021. Carrying amount $ e Textbook and Media List of Accounts Record the expenditure to upgrade the equipment on October 1, 2021. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter for the amounts.) Date Account Titles and Explanation Debit Credit Oct. 1 Record the annual depreciation of the equipment on September 30, 2022. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts.) Date Account Titles and Explanation Debit Credit Sept. 30 (To record depreciation expense.)