The increase in pressure required to decrease the volume of a water sample by \( 0.2\% \) is \( P \times 10^{5} \, \text{N m}^{-2} \). Bulk modulus of water is \( 2.15 \times 10^{9} \, \text{N m}^{-2} \). The value of \( P \) is __________.
