calculate return in percentage

\begin{tabular}{|r|r|r|r|r|r|} \hline Open & \multicolumn{1}{|l|}{ Ligh } & Low & Close & Adj Close & Volume \\ \hline 39.4 & 40.5 & 39.01 & 39.41 & 36.73311 & 72499700 \\ \hline 40.47 & 41.41 & 40.3 & 40.8 & 38.02869 & 84347500 \\ \hline 40.98 & 41.03 & 39.52 & 40.09 & 37.36692 & 68570100 \\ \hline 39.89 & 40.45 & 39.89 & 40.34 & 37.59994 & 35368100 \\ \hline 40.66 & 41.4 & 40.37 & 41.25 & 38.44812 & 48253700 \\ \hline 41.4 & 42.77 & 41.35 & 42.56 & 39.66914 & 87039300 \\ \hline 43.07 & 43.08 & 41.13 & 41.85 & 39.00736 & 86118500 \\ \hline 41.82 & 42.22 & 41.45 & 41.73 & 38.89552 & 57749200 \\ \hline 41.97 & 42.07 & 40.69 & 41.12 & 38.32696 & 60737000 \\ \hline 41.62 & 41.66 & 39.07 & 39.21 & 36.54669 & 94809700 \\ \hline 39.06 & 39.18 & 38.21 & 38.71 & 36.08065 & 65712800 \\ \hline 38.18 & 38.47 & 37.74 & 37.84 & 35.26974 & 56515300 \\ \hline 37.83 & 38.12 & 37.31 & 38.03 & 35.44684 & 52036400 \\ \hline 37.99 & 38.09 & 37.5 & 37.68 & 35.12062 & 60259200 \\ \hline 37.28 & 37.4 & 36.91 & 37.38 & 34.841 & 40891800 \\ \hline 37.21 & 37.33 & 36.6 & 36.74 & 34.24447 & 33634400 \\ \hline 37.01 & 37.65 & 36.88 & 37.44 & 34.89692 & 36182000 \\ \hline 37.4 & 37.57 & 37.18 & 37.27 & 34.73846 & 14790100 \\ \hline 37.36 & 37.58 & 36.68 & 36.82 & 34.31904 & 26993700 \\ \hline 36.9 & 37.2 & 36.79 & 37.05 & 34.53341 & 23152100 \\ \hline 37.03 & 37.24 & 36.7 & 36.74 & 34.24447 & 24889800 \\ \hline 36.66 & 36.92 & 36.29 & 36.81 & 34.30971 & 30796500 \\ \hline \end{tabular}