The increase in the pressure required to decrease the volume ( Δ V ) of water is 6.3 × 10^7 N / m^2. The percentage decrease in the volume is ____.…

The increase in the pressure required to decrease the volume ( $\displaystyle \Delta V$ ) of water is $\displaystyle 6.3 \times 10^7 \mathrm{~N} / \mathrm{m}^2$. The percentage decrease in the volume is $\displaystyle \_\_\_\_$. (Bulk modulus of water $\displaystyle =2.1 \times 10^9 \mathrm{~N} / \mathrm{m}^2$.)