What can nobody know before spinning?
Each spin stops the reels at random, so the Progressive Multiplier Free Spins may arrive on the first spin or after a long run of base game spins. Nobody knows in advance when that bonus comes. The result of one session is random too, whatever the RTP version, because an RTP only describes the long run.
Reels return a set share of every stake at the RTP version this site runs. Which version that is appears only in the game rules, so check the game rules to confirm it. The table below shows the money return on A$100 staked.
Symbol wins can climb toward the maximum win, a ceiling reached very rarely rather than a target. Treat the top figure in the table as the limit of the game, not an expected payout. The game sets that limit as a multiple of the bet, so the money amount grows with the stake.