You can also use the formula:
FV = FV(C)+UV(1-C)
FV = Filtered Value
C = Constant (0.00 - 0.99)
UV = Unfiltered Value
In the previous formula where we used FV = FV+C(UV-FV) the higher the C value that you used the more it fluctuates, but now with the other formula that i stated above, if you enter a high C value the less it fluctuates. I guess its a matter of personal preference, but i put it out there in case anyone want it that way.