BKM Systems revenues are shown below. The interest rate is 10% per year.

The present value for these cash flows is:

\begin{tabular}{|r|r|r|r|} \hline Year & \multicolumn{1}{|l|}{ Revenue \$ Year } & & Revenue\$ \\ \hline 0 & 4000 & 4 & 5000 \\ \hline 1 & 4000 & 5 & 5000 \\ \hline 2 & 4000 & 6 & 5000 \\ \hline 3 & 4000 & 7 & 5000 \\ \hline \end{tabular}