Launchpool's split is straightforward: the tokens you get each day ≈ your stake ÷ total pool stake × the daily release, and Binance usually settles it hourly based on your share at that hour. So the bigger your slice of the pool and the earlier you're in, the more you collect. To understand the mechanics and which coin to stake, read the full Launchpool guide and stake BNB or FDUSD.
One thing to keep straight: the result is a token count, not dollars. What a token is worth rides on its opening price, and a weak open isn't rare — don't treat an estimate as a sure thing.