Can Prism make pie charts?

Yes, Prism 6 can make pie charts.

Using earlier versions of Prism,  you can easily make a pie graph with Microsoft Graph or Excel (really the same thing), and embed that on a Prism layout. Either make the graph first, then copy and paste. Or use Prism's Insert Object command (Windows only, not Mac)  to insert a Microsoft Graph object. When you use MS Graph, the data will be entered into its own data table. It cannot graph data within Prism (unless you copy and paste).