On January 2, 2015, Roth, Inc. purchased a laser cutting machine to be used in the fabrication of a part for one of its key products. The machine cost $90,000, and its estimated useful life was four years or 850,000 cuttings, after which it could be sold for $5,000.

Required
Calculate each year’s depreciation expense for the machine's useful life under each of the following depreciation methods (round all answers to the nearest dollar):

1. Straight-line.
2. Double-declining balance.
3. Units-of-production. (Assume annual production in cuttings of 200,000; 350,000; 260,000; and 40,000.)