Billips Corporation purchased a new machine for its assembly process on August 1, 2008. The cost of this machine was $117,900. The company estimated that the machine would have a trade-in value of $12,900 at the end of its service life. Its life is estimated at 5 years and its working hours are estimated at 21,000 hours. Year-end is December 31.

Instructions

Compute the depreciation expense under the following methods:

(a) Straight-line depreciation for 2008,

(b) Activity method for 2008, assuming that machine usage was 800 hours,

(c) Sum-of-the-years’-digits for 2009, and

(d) Double-declining balance for 2009. (Round to nearest dollar.) Each of the foregoing should be considered unrelated.