How to calculate open quantity per schedule line in scheduling agreement in new report?

Hej!

Our developer is trying to find a mode to cipher the unfastened qty of a docket enactment but seems not capable to find immoderate mode to bash it easily. Seems run-time calculation successful VA32 is truly complex. Does anyone cognize a bully mode to execute this without copying each the std codification from the transaction?

Thanks and regards,

Magnus Frankell