DALEM!Volume Accumulation Percentage [VA Pct] coded by Rich Denning 8/4/01 define n 21. AccumFac is (([close]-[low]) - ([high]-[close])) / ([high]-[low]). VolumeSum is sum([volume],n). VolumeAccum is sum([Volume] * AccumFac,n). !Plot as historigram with zero line [VA Pct] VApct is VolumeAccum / VolumeSum * 100.  Rule Library˙˙ CCodeView