Taking into Account the Return to Player (RTP) Percentage. The return to player (RTP) percentage of a slot machine is another important consideration. slots cash gamesWhen expressed as a percentage of all bets, the RTP shows the average amount a player can anticipate winning back over time. Higher RTP games typically give players better odds, which makes them a more alluring choice for those wishing to optimize their possible profits. Risk Tolerance and Volatility.