The machine's Return to Player (RTP) percentage is one of the main factors to be considered. For example, a machine with a 95 percent RTP theoretically returns rummy glod$95 for every $100 wagered; this number is the average amount a player can anticipate winning back over time. Better odds are typically indicated by higher RTP percentages, which makes them a more alluring choice for players. The volatility or variance of a slot machine is another crucial factor to take into account.