Add additional calculation to Capacity Bar

I'm currently using the Capacity bar on the features screen based on points for my releases. Right now the bar shows 'Work done' (green), 'Work remaining' (blue) and then white space for points left. When I scroll over the green & blue sections it shows me a number, but when I scroll over the white space section, it shows me nothing. I then end up having to do the math in my head of how many points do I have left to assign to the release. It'd be nice if it did the calculation for me and showed me a pop up of the number.