On January 2, 2021, Archer Company, a skateboard manufacturer, installed a computerized machine in its factory at a cost of $176,600.

The machine's useful life was estimated at four years or a total of 190.000 units with a $36,000 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.)

1. Straight-line
2. Double-declining-balance
3. Units-of-production, assuming actual units produced were

Year

Units

2021

40,000

2022

43,700

2023

54,300

2024

73,000