I'm working on an overhaul for the magic system. I wanted to make the base spell cost based on a percentage of how much Magika points you have invested (Ex: cost = MagikaPoolSize / 10). Is there a way to maybe do this with scripts, and If so, how would i go about this?

Any and all help is much appreciated!

I dont have the CK in front of me but you can use perk entry points to "mod spell cost". I know there is an option to "set value to skill mult" or something like that ( so for instance you could definitely scale cost to 1/10 of player's destruction level). Not sure if there is an option to base it off of an actor value (like magicka) but otherwise you could add a lot of conditions to change the cost for every 10 magicka or so. This would be the no scripting option. You could also do it via scripting but I think youd have to set the costs to 0 in the CK and then manually remove magicka from the player, which would mess up experience gain. there may be other options, but thats a start!