On January 2, 2021. Archer Company, a skateboard manufacturer, installed a computerized machine in its factory at a cost of $160,500. The machine's useful life was estin lat four years or a total of 185.000 units with a $31,000 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