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5 E22-10 (Depreciation Changes) On January 1, 2011, Jackson Company purchased a building and equip- ment that have the following useful lives, salvage values, and costs. Building, 40-year estimated useful life, $50,000 salvage value, $800,000 cost Equipment, 12-year estimated useful life, $10,000 salvage value, $100,000 cost The building has been depreciated under the double-declining-balance method through 2014. In 2015, the company decided to switch to the straight-line method of depreciation. Jackson also decided to change the total useful life of the equipment to 9 years, with a salvage value of $5,000 at the end of that time. The equipment is depreciated using the straight-line method. Instructions (a) Prepare the journal entry(ies) necessary to record the depreciation expense on the building in 2015. (b) Compute depreciation expense on the equipment for 2015