A category sourcing team is developing a scorecard to rate supplier performance using a 5-point scale. Based on the data provided for the quality systems section of the scorecard, what is the supplier's percent rating for quality systems?

\begin{tabular}{|l|c|c|c|c|} \hline & Weight & Sub-weight & Score (1-5) & Overall Score \\ \hline Quality Systems & 30 & & & ? \\ \hline Process Control System & & 15 & 2 & \\ \hline Total Quality Commit & & 10 & 5 & \\ \hline PPM Rate & & 5 & 4 & \\ \hline \end{tabular}