[untog]

> How do you know if Apple will be able to sustain an app store with that number?

I suspect part of the problem is that Apple could be creative with its finances and make sure that just about any cut that isn't 30% means they can't sustain an app store. Apple earns an insane amount of money, they could get by with 0% commission just fine, but it's not in their interests to ever admit that.

Sure, 12% is made up, but the result of just about any negotiation is a made up number that sits somewhere between what one party wants and what the other party demands. It's just the nature of it.

[bigtechdataeng]

Except you aren’t proposing that 12% be the result of a negotiation, you are suggesting it’s a fair number to be imposed by force of law.

[untog]

I'm not suggesting anything, I'm not the OP. But to my mind they were suggesting that it is the kind of number that could come out of a negotiation and seem appropriate.