Volume  Alerter
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © robszz4

// @version=4
study("Volume  Alerter", shorttitle = "VolAlrt", max_bars_back=500 ,overlay = true)


PerUp = input(150, minval=1, title="Percent Change Up") 

isIncreasing = ((PerUp * .01)+1) * volume[1]
plotshape((volume > isIncreasing) ? PerUp: na, style=shape.arrowup, location=location.belowbar, color = color.green, size = size.normal, text="increased volume")

