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Key terms relating to live return to player performance monitoring of games of chance

Theoretical RTP

This is the designed return to player percentage of the game, it will also be the advertised RTP of the game as displayed in the player facing rules, as per RTS 3C.

Actual RTP

Calculated using the generated win and turnover figures of the live (operational) game. It shows the RTP the game has actually achieved for the past period as covered by the selected win and turnover amounts.

Volatility

Most commonly the standard deviation of the game is used to represent the game’s volatility. A highly volatile game will have a larger tolerance and might be comprised of prizes falling into the ‘very large but rare’ category. A low volatility game will be much more predictable and mostly comprised of prizes falling into the ‘small and often’ category. Standard deviation is a mathematically calculated figure (square root of the game’s variance, where the variance depends on the game’s cycle and prize frequency).

Turnover

The total of all stakes made on the game, this will include reinvested winnings awarded during play.

Win

The total of all prizes awarded during game play. The GGY of a game will be the turnover minus win.

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Last updated: 28 January 2021

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