96% RTP does not mean 96% back tonight.

Start with turnover, not the deposit

Turnover is the sum of all stakes, including any winnings you stake again. For an illustrative game with 96% RTP, the theoretical house edge is 4%. At NZ$500 turnover, the mathematical expected loss is NZ$20: 500 × (1 − 0.96).

That is an expectation across the game’s distribution of results, not a session forecast. You could lose your available balance well before reaching a planned number of spins. You could also finish ahead. Neither outcome disproves the theoretical percentage.

Try the arithmetic

Change the inputs below to see how turnover and RTP affect theoretical expected loss. The percentage is illustrative and does not identify a particular game. This calculator cannot estimate the chance of losing your balance.

RTP and volatility answer different questions

RTP describes the average proportion returned over extensive play. Volatility describes the spread of outcomes. Two games can have the same stated RTP yet feel very different because their prize distributions differ.

A volatility label alone does not give the probability of a particular result. Without the full prize distribution, the calculator cannot tell you how likely a NZ$50 balance is to last, how frequently a feature appears or how deep a losing run could be.

Check the version you can actually open

Use the rules or help panel for the actual game version. A provider’s promotional maximum RTP is not automatically the configuration available on a particular platform. If the version cannot be identified, treat the percentage as unresolved rather than filling the gap from an affiliate table.

The UK Gambling Commission’s explanation is used here for the mathematics of RTP. Its statements about UK machine rules should not be read as New Zealand law.

There is no “due” spin

Random results do not become more predictable after a losing streak. Changing the time of day or pressing the button differently does not create an advantage. A higher theoretical RTP also leaves a house edge when it is below 100%; it is not an income strategy.