Hi @Muecke,
Have you looked at percentage share? This will work if you are NOT in custom mode. have a look here: https://helpphocassoftware.atlassian.net/wiki/spaces/userdoc/pages/590053/Format%2Bdata%2Bview
I have raised this on a feature enhancement for custom mode here: % Share - Enhancements - Display, Others and Criteria features
Regards,
Jon