Boosted Stats

[Rykashi]

Im new to this program and don't know some features, I was wondering how the boosted stats work? They have specific numbers that go way over the max boosted stats that shows in the game and in the wiki despite my miis not being maxed stats? How can I max their stats properly, what number should i go for?

[Brionjv]

In my note in 3DS version max value is 8000, it's probably same in Switch version.