As I said in my in game msg crazy, what you accomplished today (which was nothing but a game months of int buying for 3 of my 6 slaves) was under the best of conditions you could have had...neither Beast nor I fought you at all until I finally saw the decs and then I decided to let Tranquility mop up your c3's. You just don't get it dude...we've got 6 of the top 10 war slaves sitting on top of eachother...and I think 10 of the top 20...you aren't going to get the wi down on a single one below 75 with your c3's...you've become too accustomed to c3 fighting from the way the NV v 3m war ended...which was a joke.
As far as gauging costs...you lost 37B per corp PLUS ammo...and you didn't gain anything...its not as if you destroying the corp means you made yourself any richer, you did not....there is zero economic gain in that for you, it is a pure loss...and don't even get me started on how corps are overvalued.