[Observium] Modify reported Custom OID Values?

Hello,

I am pretty new to Observium and really love it. Right now I am adding some Custom OIDs from our devices.

We are using these devices to log the power usage of our housing customers: http://www.hw-group.com/products/HWg-PWR/hwg-pwr25_M-bus_gateway_en.html There is a small problem with the reported power usage. The device reports the values a hundred times higher than they are supposed to be, e.g. 100 kWh when in fact it should be 1 kWh.

Is there a way I can divide the polled values before they are stored? If not could you please add such a feature? I was able to do this in WhatsUp Gold, but I want to get rid of it :)

Thanks in advance.

Regards, Siegfried