FA depreciation method, when revaluation and impairment are

ljupkam

I have a client that calculates the depreciation based on the new value of the FA i.e. the net book value=gross book value (on the beginning of the year) -+impairment -+revaluation, using a straight line depreciation. If I use the straight line depreciation method in Navision, the calculation would be done from the gross book value (acquisition cost).
Can someone tell us how to give the new value to the FA using impairment and revaluation in NAV, and then what depreciation method to use to have the depreciation calculated from the Net book value. There is another catch: when there is no revaluation or impairment the calculation of the depreciation is done from the gross book value.
thanks

ssingla

Haven't used Impairement/Revaluation for a long time now. But AFAIK depreciation should be calculated and posted before posting "Apreciation" or "Write-Down". The period end depreciation will then calculate on new value on the remaining period.