A water sample of volume 2 litres is compressed by a pressure of 2 × 106 N/m2. If the bulk modulus of water is 2.2 × 109
Bulk modulus: B = -p / (ΔV / V). Rearrange: ΔV / V = -p / B = -(2 × 106) / (2.2 × 109) ≈ -9.09 × 10-4. Magnitude: 9.09 × 10-4.
Ref: NCBI Bookshelf, Ideal Gas Law: P1V1/T1 = P2V2/T2.