calcualte monster damage on me?

We'll a monsters P.Att and M.Att scores are listed as a straight value, like a Player's Magic score. So I was thinking what if a mob's magic damage works on the same formula as a PC's? then all we'd have to do is put the M.Att value into the M.Damage equation as if it were a PC's Magic and calc the damage range, then test it to try to figure out its mastery percentage. Then if that Idea hold true then it should be basically the same or close to the M.Damage equation for the P.Damage. Also what if the mob's physical touch damage is just the same formula as a Player laying down and poking/Jabbing the Mob?