Apex Fitness Club uses straight-line depreciation for a machine costing $25,250, with an estimated four year life and a $2,500 salvage value. At the beginning of the third year, Apex determines that the machine has three more years of remaining useful life, after which it will have an estimated $2,050 salvage value. (1) Compute the machine's book value at the end of its second year. (Do not round your intermediate calculations Book Value at the End of Year 2: Cost Accumulated depreciation Book value at point of revision