Session results and the top prize
Before you set a stake, accept that nobody can predict how often the bonus round will arrive. Each session is random, and the RTP describes a long-run average, not the result of one visit. A session can end above or below the amount you started with, whatever the RTP says.
Checking which RTP version this lobby runs comes before any bet, because that detail is shown only in the game rules. Open the rules panel inside the game and read the version there. Each version carries its own long-run return, so the rules decide what the numbers on this page mean for your session.
Planning a bet around the top prize means treating the maximum win of Brick House Bonanza as a ceiling, not a target. That ceiling is reached very rarely, so the stake is best judged by the spins it buys rather than by the top prize.