On April 22, 2020, Cullumber Enterprises purchased equipment for $143,500. The company expects to use the equipment for 12,500 working hours during its 4-year life and that it will have a residual value of $13,500. Cullumber has a December 31 year end and pro rates depreciation to the nearest month. The actual machine usage was: 2,000 hours in 2020:3.000 hours in 2021; 3,600 hours in 2022:2,700 hours in 2023; and 1.400 hours in 2024. Calculate depreciation expense for the life of the asset under straight-line method. (Round answers to decimal places, es. 5,276.) Depreciation Expense 2020 $ 2021 $ 2022 $ 2023 $ 2024 $ Calculate depreciation expense for the life of the asset under double diminishing-balance method. (Round answers to decimal places, eg. 5,276.) Depreciation Expense 2020 $ 2021 $ 2022 $ 2023 $ Calculate a depreciation expense for the life of the asset under units-of-production method. (Round unit rate to 2 decimal places, eg. 2.25 and final answers to decimal places, eg 5,276.) Depreciation Expense 2020 S 2021 $ 2022 VA 2023 $ 2024 s Which method results in the lowest profit over the life of the asset? Which method results in the least cash used for depreciation Over the life of the asset