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Machine Acquired Salvage Value Useful Life (in years) Depreciation Method Cost 1 Jan. 1.2020 $128.500 $18,500 10 2 July 1, 2021 81,500 11.300 5 Straight-line Declining balance Units-of-activity 3 Nov. 1.2021 76,800 6,800 7 For the declining balance method. Cullumber Company uses the double-declining rate. For the units-of-activity method, total machine hours are expected to be 35.000. Actual hours of use in the first 3 years were: 2021.6702022, 3,600; and 2023,4,900 (a) Your answer is partially correct. Compute the amount of accumulated depreciation on each machine at December 31, 2023. MACHINE 1 MACHINE 2 MACHINE 3 Accumulated Depreciation at December 31 $ 44000 $ 76800