We were talking about profit, are you saying that Apple and Google taking 90% profit of all revenue for games while devs are taking only 10%? Do you have something to backup that?
No, I'm saying that Apple had a gaming revenue of 16.3 billion dollar in 1H 2018 and that their cut of that revenue was 4.4 billion dollar.
These 4.4 billion dollar aren't 100% profit, since they will have some expenses to keep their servers running, pay internet traffic and pay support people. But probably 90% of the 4.4 billion dollar are profit, so around 4.0 billion dollar. The full year 2018 will be a profit of at least 8 billion dollar (the christmas quarter is usually a lot stronger).
For comparison, the operating income of Sony's gaming segment was ~1.55 billion dollar (177 billion yen) last year: