A machine which cost $550,000 is acquired on October 1, 2020. Its estimated salvage value is $55,000 and its expected life is 4 years. Your answer has been saved. See score details after the due date. Calculate depreciation expense for 2020 and 2021 by double-declining balance. (Round answers to 0 decimal places, e.g. 5,275.) 2020 2021 Depreciation expense $ 68750 $ 240625 Your answer has been saved. See score details after the due date. Calculate depreciation expense for 2020 and 2021 by sum-of-the-years' digits. (Round answers to decimal places, e.g. 5,275.) 2020 2021 Depreciation expense $ 49500 $ 185625 Your answer has been saved. See score details after the due date. At the end of 2021, which method results in the larger accumulated depreciation amount