Earlier quoted context omitted.
Apple annual gross profit for 2021 was $152 billion. That ~19B in 2020 is before CC fees on 64B or internal expenses. App stores have a lot of customer service and charge backs on relatively tiny purchases. Actually reviewing apps isn’t cheap either, and all the relevant IT adds even more expense. Further they upped the developers cut to between 70% and 85% from the flat 70% in 2020. So sure they might make 3-5 billi…
at 5%, cc fees would result 2.9 billion. So more like 16B in profit
So you assume they can do all the stuff I just mentioned for 0$ and changing their fee structure had no long term impacts on profits.
Also your math doesn’t work out if 5% of 64B = 3.2B, though 25% or 64B is 16B. Not that actual CC fees are 5%, or that their old revenue model is relevant any longer.