Question 5. Please explain how the profits were calculated and show all work for calculating profits.

\begin{tabular}{|l|c|c|c|c|} \hline & 10 & 11 & 12 & 13 \\ \hline Call/Put & C & P & C & P \\ \hline Long/Short & L & L & S & S \\ \hline Premium & $0.02 & $0.04 & $0.01 & $0.03 \\ \hline X & $1.45 & $1.80 & $0.76 & $0.75 \\ \hline S & $1.46 & $1.59 & $0.82 & $0.72 \\ \hline units & 31250 & 31250 & 50000 & 50000 \\ \hline Profit & $312.50 & $5,312.50 & $2,500.00 & $0.00 \\ \hline \end{tabular}