A paper filled parallel plate capacitor (k=3.30) has an area of 0.150m^2, and the plate seperation is set at 1.00 μm. This capacitor is hooked up to a 12.0V battery in order to store energy in the device. The paper is then removed and the plate separation is doubled while the battery is still connected. Calculate the magnitude of the change in energy stored in the capacitor, and say whether the energy change is an increase or decrease.