Would like to pull 1 perk point off that i used.
You need to know the perk ID number. For instance, to remove Apprentice Destruction it is c44bf as found on the table http://www.uesp.net/wiki/Skyrim:Destruction
player.removeperk c44bf
I haven't played with it much but would strongly recommend being careful with this command as I can't know if it will break anything. At least I would recommend removing perks in the order you added them or at least not breaking their dependencies. For instance, I wouldn't remove Novice Destruction before Apprentice Destruction.
Edit: If you are viewing the perk screen as you do this you'll need to exit and re-enter it to see the change.