On January 2, 2018, Archer Company, a skateboard manufacturer, Installed a computerized machine in its factory at a cost of $174,200. The machine's useful life was estimated at four years or a total of 186,500 units with a $25,000 trade-In value. Archer Company's year- end Is December 31 Calculate depreciation for each year of the machine's estimated useful life under each of the following methods: (Do not round Intermediate calculations.) a. Straight-line b. Double-declining-balance c. Units-of-production, assuming actual units produced were: Year Units 2019 2018 2020 2021 38,900 42,050 53,200 62,000 Year Straight-Line Double-Declining-Balance Units-of-Production 2018 2019 2020 2021 Total