Fractional change in volume, $\frac{\Delta \mathrm{V}}{\mathrm{V}}=\frac{\mathrm{P}}{\mathrm{B}}$

Here, $P=10$ atm $=10 \times 1 \times 10^{5} \mathrm{N} \mathrm{m}^{-2}$

$\mathrm{B}=37 \times 10^{9} \mathrm{N} \mathrm{m}^{-2}$

$\therefore \quad \frac{\Delta \mathrm{V}}{\mathrm{V}}=\frac{1 \times 10^{6} \mathrm{Nm}^{-2}}{37 \times 10^{9} \mathrm{Nm}^{-2}}=0.027 \times 10^{-3}$

$=2.7 \times 10^{-5}$