Answer the question based on the following information.
These questions are based on the price fluctuations of four commodities — arhar, pepper, sugar and gold during February-July $1999$ as described in the figures below.
The price volatility(PV) of the commodity with the highest PV during the February-July period is approximately equal to
- $3\%$
- $40\%$
- $20\%$
- $12\%$