DEPRECIATION KEY BASED IN NUMBER OF UNITS

Hi Friends,

I would like your help to understand a situation. In 2012 we implemented the depreciation key based in number of units (Dep. Method "No. of units/Total no. of units"). The base method = 18 (Ordinary: Unit-of-production depreciation).

The process is working well, but now the business area need to change the Total number of units. We tested this new situation, but when the remaining number of units reaches '0' at AO25, there is a  net book value at AW01N (not fully depreciated).

Thanks in advance for any advice or thoughts

Augusto