\documentclass{ppex}
\nonstopmode
\usepackage {dratex,aldratex}
\pagestyle{empty}
\setlength\textwidth{207.0pt}
\begin{document}
\ResetPreambleCommands
\ReadyForTheFray
\usepackage {dratex,aldratex}
\Draw
   \Scale(1,0.6)
   \PieChartSpec(1,50,25)()
   \PieChart(10 & 30 & 15 & 5)
   \Move(0,-6)
   \DrawOvalArc(50,50)(180,360)
\EndDraw
\end{document}