This Table Contains the Performance Criteria and Scores (Larger Numbers

This table contains the performance criteria and scores (larger numbers are better)for four potential suppliers to Los Pollos Hermanos. Evaluate the data and identify the BEST source for Los Pollos Hermanos.
$$\begin{array} { | l | c | c | c | c | } \hline \text { Performance Dimension } & \text { Company W } & \text { Company P } & \text { Company D } & \text { Company G } \\\hline \text { Purity } ( \mathrm { W } = 0.5 ) & 5 & 4 & 2 & 5 \\\hline \text { Cost } ( \mathrm { W } = 0.2 ) & 4 & 3 & 5 & 2 \\\hline \text { Stability } ( \mathrm { W } = 0.2 ) & 2 & 1 & 4 & 5 \\\hline \text { Speed } ( \mathrm { W } = 0.1 ) & 3 & 5 & 5 & 2 \\\hline\end{array}$$