Double-Declining-Balance Depreciation A building acquired at the beginning of the year at a cost of $108,800 has an estimated residual value of $5,400 and an estimated useful life of four years. Determine the following. a. The double-declining-balance rate X % b. The double-declining-balance depreciation for the first year $ Feedback Check My Work The double-declining-balance rate is two times the straight-line rate. When the double-declining-balance method is used, the estimated residual value is not considered