Your answer is partially correct. The cost of equipment purchased by Metlock, Inc., on June 1, 2020, is $117,600. It is estimated that the machine will have a $8,400 salvage value at the end of its service life. Its service life is estimated at 7 years, its total working hours are estimated at 54,600, and its total production is estimated at 780,000 units. During 2020, the machine was operated 6,660 hours and produced 61,050 units. During 2021, the machine was operated 6,105 hours and produced 53,200 units. Compute depreciation expense on the machine for the year ending December 31, 2020, and the year ending December 31, 2021, using the following methods. (Round depreciation per unit to 2 decimal places, eg. 15.25 and final answers to decimal places, e.g. 45,892.) 2020 2021 Straight-line $ 9100 $ 15600 (a) ) Units-of-output $ 8547 $ 7448 (c) Working hours $ 13320 $ 12210 (d) Sum-of-the-years'-digits $ 15925 25025 $ $ (e) Double-declining-balance (twice the straight-line rate) $ 19599 16333 Save for Later Last saved 1 second ago. Attempts: 1 of 3 used Submit