Ok so here is the problem i ran into and I'm sure its an easy fix I am just retarded.
We use epgp and ofcourse I use the Grss addon. However EPGP recently changed all of their values after we had already used the old values and uploaded to our website. Trying to make a long story short the epgp writers suggest dividing everything by 10 and go with the new values they have on their new addon. How do I get all of my EP and GP values divided by 10 on my website. If I go to mass adjustments and enter the new value (the old value/10) it just adds that amount to the EP. If i put a negative number to try to subtract it it just gives them that much GP.