On January 2, 2021, Archer Company, a skateboard manufacturec, installed a computerized machine in its factory at a cost of $150,200. The machine's useful life was estimated at four years or a total of 186,000 units with a $20,000 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 colculations.) o. Straight-tine b. Double-declining balance: c. Units-of-production, assuming actual units produced were