Revision of Depreciation C Equipement with a cost of $683,200 has an estimated residual value of $73,200 has an estimated uselul life of 25 years, and is depreciated by the straight line method. 3. Determine the amount of the annual depreciation b. Determine the book value after 13 full years of use Assuming that at the start of the year 14 the remaining life is estimated to be 15 years and the residual value is estimated to be 572,500, determine the depreciation expense for each of the remaining 15 years NOT Check My World