Calculate the Cash Flow to Sales Ratio Using the Following

Multiple Choice

Calculate the cash flow to sales ratio using the following data.
$\begin{array}{|l|r|}\hline \text{Sales revenue} & \$ 650000 \\\hline \text{Ending cash balance for the period} & 22500 \\\hline \text{Net cash inflow from operating activities} & 84000 \\\hline\end{array}$

A) 3.46%
B) 7.74%
C) 9.46%
D) 12.92%