\begin{tabular}{|l|r|r|c|} \hline & \multicolumn{1}{|c|}{ A } & \multicolumn{1}{c|}{ B } & \multicolumn{1}{c|}{ C } \\ \hline 1 & Rate (i) & 9% & "simple" \\ \hline 2 & & & \\ \hline 3 & & Cash Flow (in) & Cash Flow (out) \\ \hline 4 & 0 & 0 & \\ \hline 5 & 1 & 1200 \\ \hline 6 & 2 & 1000 \\ \hline 7 & 3 & 3000 \\ \hline 8 & Sum & & \\ \hline 9 & Function & & \\ \hline \end{tabular} \begin{tabular}{|l|r|r|c|} \hline & \multicolumn{1}{|c|}{ A } & \multicolumn{1}{c|}{ B } & \multicolumn{1}{c|}{ C } \\ \hline 1 & Rate (i) & 9% & "simple" \\ \hline 2 & & & \\ \hline 3 & & Cash Flow (in) & Cash Flow (out) \\ \hline 4 & 0 & 0 & \\ \hline 5 & 1 & 1200 \\ \hline 6 & 2 & 1000 \\ \hline 7 & 3 & 3000 \\ \hline 8 & Sum & & \\ \hline 9 & Function & & \\ \hline \end{tabular}