...value calculator, just a a small one for my needs because when I start this, I'm gonna make certain hypothesis or guesses, and I'm not gonna be right. And I want it kinda built so it'll do the math so when I say, oh, their yield wasn't 10%. It was 15

...a little value because, yeah, we got you a longer durability, but in so doing, we lost a little bit of corrosion or whatever might be your your other thing. So it's the net of those things, and we literally have to take it and say, how does the custo