How much does it cost to declaw a cat/kitten?

No one freak out. I’m not planning on doing it (I don’t even have a cat).

I was just wondering how much such a procedure would cost, in the US. Does it matter whether you do it on a kitten or when the cat is older? I’ve heard varying opinions.

Please, let’s not turn this into a PETA scene with sob videos. I just want to know more about the procedure itself, objectively, in the ways that I asked above.