Deprecation by Two Methods A storage tank acquired at the beginning of the fiscal year at a cost of $115,200 has an estimated residual value of $7,500 and an estimated useful life of 25 years a. Determine the amount of annual depreciation by the straight-line method. b. Determine the amount of depreciation for the first and second years computed by the double-declining balance method. Do not round the double dedining balance rate. If required, round your answers to the nearest dollar, Depreciation Year Year 2