It's important to keep in mind, though, that this is a long-term average and that individual sessions can differ significantly. Knowing these fundamentals will improve yocolour predictionur enjoyment & give you the information you need to make wise choices while playing. RTP Percentage: An Important Odds Measure. The machine's RTP percentage is one of the first things to check. Selecting machines with an RTP of 96 percent or higher can be a smart move because higher RTPs typically translate into better odds for players.