In most slots, the rate is somewhere between 80% and 95%, but some games can exceed 95%. The basics of the return to player percentage indicate that if you betR$100 on a game with an RTP of 94%, you'll win backR$94. But again, this is for long-term results since the rate was determined over millions of spins.
Slot games work by using a set number of symbols that can appear on a fixed layout. The symbols in every position are random and can form strings of matching icons on the same line, which awards a payout. Online slots also have extra features to help generate wins, like wild symbols, scatters, and bonus spins.