Ideal gas equation

A fixed mass of ideal gas is kept at constant temperature in a cylinder with a movable piston. The initial pressure is 1.0×10⁵ Pa and the volume is 2.0×10⁻³ m³. The piston is slowly pushed in until the volume is 1.2×10⁻³ m³. Using the ideal gas equation in the form $pV = \text{constant}$ at constant temperature, calculate the final pressure of the gas.