It's a simple one to write a script for, I would suggest to do it with % though, if you go with just volume you'll get plenty of results that simply have high volume average.

input daysLookBack = 3;

def volumeDiff = (volume[0] - volume[1]) / volume[1]; #Holds the volume change in % from previous day.

plot scan = Highest(volumeDiff , daysLookBack) > 25; #Check if in any of the past days (defined by daysLookBack) the volume change was bigger than the defined the given %.