Radar chart number formatting

Hi all, 

I'm working on a dashboard in which I want to use a radar chart. In this radar chart I'm using numbers, currency and percentages. I've tried using measures with the correct format added, and also a calculation group with all the formatting correctly added. But in the radar chart it will not show up. Also it doesnt round up the numbers, so it has like 10 decimal places.

For currency and numbers it's semi ok, but that percentages don't show up is confusing to my end users. 

Is there anything I can do about it or should I request a new feature for this?