Instead of a pie chart, a bar chart would be more meaningful.
In Tableau, a bar-within-a-bar chart is easy to pull off.
I’m not very good with the chart builder in Quantrix, but the attached gives you the concept.
James and Rich probably know how to shrink the commitment data point. That is, keep the original width of commitment, and then make the actual total be about half the size of the commitment bar width.
I’d probably nix the difference between actual and budget. But I kept it as I used what you already had.
To clarify, my attempt at what I was trying to accomplish is a poor one–just brainstorming an idea.