Determine stock turnover for the four-month period, February-May, using the following figures:

Determine stock turnover for the four-month period, February-May, using the following figures: \begin{tabular}{|c|c|c|} \hline & BOM Stock & Net Sales \\ \hline February & $18,000 & $17,500 \\ \hline March & $25,000 & $20,000 \\ \hline April & $32,000 & $28,500 \\ \hline May & $30,000 & $26,000 \\ \hline June & $20,000 & $18,000 \\ \hline \end{tabular}