Double-declining-balance depreciation method
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Double-declining-balance depreciation method (DDB)
Double-Declining-Balance Depreciation Method
A way of calculating the depreciation of an asset that assumes the asset loses value at double the rate of the straight-line method. One calculates the DDB by depreciating double the straight-line value for the first year, and then depreciating the same percentage for each remaining year of the asset's usable life. DDB is a form of accelerated depreciation.