acquired equipment on January 1, 2010, for $320,000. The equipment had an
estimated useful life of 10 years and an estimated salvage value of $25,000. On
January 1, 2013, Jackson Corporation revised the total useful life of the
equipment to 8 years and the estimated salvage value to be $20,000. Compute
depreciation expense for the year ending December 31, 2013, if Jackson
Corporation uses straight-line depreciation.