The term "depreciable amount" refers to the amount of deducting its expected net salvage value from the original price of the fixed asset to be depreciated. Returns the sum-of-years 'digits depreciation of an asset for a specified period 应计折旧额,是指应当计提折旧的固定资产的原价扣除其预计净残值后的金额。返回某项固定资产按年限总和折旧法计算的每期折旧金额