Notion does this very nicely! Yes, you can get the total if you click on a pie chart, and you can use the “KPI” report. But I feel like a KPI number with no other info is a waste of space. But having both in one allows for quickly seeing an overview.
Screenshot 2025-05-02 at 17.39.45|547x500
Interesting article: Pie Chart vs. Donut Chart: Showdown in the Ring | by Andrea Robertson | Medium