declining balance method
noun [ S ]
ukus(also diminishing balance method); (also reducing balance method) ACCOUNTING
a way of depreciating (= reducing the value of) a fixed asset in a company's accounts , in which the asset's value is reduced by the same percentage each year, so that the reduction is less each year:
One example of accelerated depreciation is the declining balance method, in which depreciation is recorded as a constant proportion of the depreciated book value over the anticipated life of the asset.