The cost of equipment purchased by Charleston, Inc., on June 1, 2014, is $199,360. It is estimated that the machine will have a $11,200 salvage value at the end of its service life. Its service life is estimated at 7 years, its total working hours are estimated at 94,080, and its total production is estimated at 1,176,000 units. During 2014, the machine was operated 13,440 hours and produced 123,200 units. During 2015, the machine was operated 12,320 hours and produced 107,520 units.

Compute depreciation expense on the machine for the year ending December 31, 2014, and the year ending December 31, 2015, using the following methods. (Round answers to 0 decimal places, e.g. 45,892.)


2014 2015
(a) Straight-line $ $
(b) Units-of-output $ $
(c) Working hours $ $
(d) Sum-of-the-years'-digits $ $
(e) Double-declining-balance (twice the straight-line rate) $ $