To respond to yours though, I’d say it depends on how much content there is! If a game can easily take 1000 hours with no degradation of enjoyment, I would pay $100 for it
Edit to add: I realize this didnt exactly address your question, but I’m not sure what percentage since it heavily depends on the quality and quantity of content
Stardew Valley. My wife and I have sunk well over 1000 hours into it and we still aren’t bored. The amount of mods for it is insane and gives so much more depth to the game, but vanilla is super well done as well.