The RTP rate is often the first stat casino players look for when browsing games. All results are dictated by Random Number Generators, so there will be winners and losers, but your chances of ending up in profit will go up if you seek out high RTP games.
By contrast, the average player will only receive $94.20 per $100 wagered when playing a slot with a 94.2% RTP rate. For example, if you play a game with a 98% RTP rate, you know that the average player gets $98 back from $100 wagered.