Steams cut off that, at just the $3 million mark, is $450 million. This is $900,000 per game.
People wonder why other companies wanted to make their own launchers. They leave millions on the table by having steam 'handle' things.
This is also why Valve isn't that inclined to pump out tons of new games.
A game like Palworld, which as of 3 weeks ago, has sold 12 million copies would end up making Valve somewhere in the neighbourhood of $72 million as of the end of January.