Before the first spin, when the outcome is unknown
Deciding whether to keep spinning for the bonus means accepting that its timing is not known in advance. How often the bonus round comes is unknown before you play, and the result of one session is random whatever the RTP. Nothing on this page predicts the next bonus round, so plan each session around a stake you can afford to lose.
Comparing returns between slots starts with knowing which RTP version the lobby runs, and that detail is shown only in the game rules. The table shows one RTP, and the game rules show which version is in play.
Deciding how high to bet for the top prize means weighing a ceiling that is reached very rarely. The maximum win of Bigger Bass Bonanza is 4,000 times the bet, and it is a cap, not an expected result.