Sheet C02 Revision 1 Terms read 16 October 2026
How a face is priced: one line, four settings, and where it stops working
Every figure on this site falls out of one line of arithmetic and four settings held fixed.
E = B × (1 – W × (1 – RTP) / g), expected survival on a credit of B
Settings: ten pence for a spin, ninety-six pence returned in the pound, forty times as the multiple, a weighting of one. Run those together and a credit is worth nothing by the time the multiple reaches twenty-five, which is the single integer behind most of what gets printed here.
1
The five letters, one at a time
B is the credit under examination, meaning a bonus as credited or the average winnings off a count of spins. W is the multiple a cashier wants staked before that credit becomes money. RTP is the share a game hands back across the long run, so one minus RTP is the share it keeps. The letter g is the weighting, the share of each staked pound that gets credited against the obligation. E is whatever is expected to survive at the end.
Multiplied out the shape is plain. Clearing a requirement costs W times B times one minus RTP, divided by g, and E is B less that cost. Nothing else is in it. No clause, no clock and no ceiling appears in the line, which is why those three get priced separately and added afterwards.
Worked once, with a credit of £30.00: forty times that credit is £1,200.00 of stakes, four pence in the pound of it is £48.00, and £30.00 less £48.00 leaves minus £18.00. A negative E is not a mistake. It says the requirement is expected to finish the credit and then take money the reader brought.
2
Why four settings are held still
Ten pence for a spin is declared because no primary source sets the figure. Searching the regulator’s own material turns up no minimum, no maximum and no duty to print it, so a number had to be chosen and then held still.
Ninety-six per cent is a working figure and not a finding about any particular game. Where a sheet concerns a named game, that game’s own published percentage is used instead and the version is named with it. Where no percentage has been published, the working figure stands and the sheet says which it is using.
Forty times is the kind of multiple demanded out beyond the British licence, and it stands four times above the ceiling imposed inside it. A weighting of one is the kindest setting available, since anything below it raises the staking without touching the headline.
Fixing all of this costs precision and buys comparability. Two sheets worked at the same settings can be set side by side; two sheets worked at different ones cannot. Where a sheet departs from a setting, the departure is named in the sentence that makes it.
3
Twenty-five, and the reciprocal behind it
Set E to nothing and B falls out of both sides. Left behind is W equal to g divided by one minus RTP, and with g at one that is the reciprocal of the share a game keeps. Four pence kept gives twenty-five.
The same sum at other returns moves the pivot a long way, which is why a ceiling means nothing quoted on its own. Ninety per cent keeps ten pence and breaks even at ten times. Ninety-four per cent keeps six pence and breaks even near sixteen and two thirds. Ninety-eight per cent keeps two pence and holds out to fifty times.
| Returned | Kept in the pound | Pivot multiple |
|---|---|---|
| 90 per cent | 10p | 10 |
| 92 per cent | 8p | 12.5 |
| 94 per cent | 6p | 16.67 |
| 96 per cent | 4p | 25 |
| 97 per cent | 3p | 33.33 |
| 98 per cent | 2p | 50 |
4
The ladder of steps, and what it costs
Prepaid money arrives in steps, and six of them are worked here: ten pounds, twenty, twenty-five, fifty, seventy-five, one hundred. The ladder is an assumption like the others, and its purpose is to price the gap between what a reader meant to spend and what a till will actually sell.
That gap is arithmetic and it is unkind at the bottom. A reader after four pounds pays ten and commits six more than planned, so the rounding costs half again as much as the sum that prompted it. A reader after thirty pounds pays fifty and commits twenty more. Proportionally the damage shrinks as the sums grow, which is backwards for anybody working to a small budget.
5
Which figures are sourced and which are assumed
Sourced and published: the ceiling of ten times on a wagering requirement, the stake caps on online slots, the pace limit between one spin and the next, the complaints clock and its end point, the duty to verify identity before play. Each of those carries a rule number and a date on the sheets that use it.
Assumed and declared: the price of a spin, the return a game pays, the multiple, the weighting, the ladder of steps, and any payout floor used in an example. None of those is a finding about the market and none is presented as one.
A return a room has not published cannot be asserted, and this publisher does not assert one. The rule that bears on it sets out four items separated by the word or, which means a margin will do, or how often a winning event comes up, where no percentage is given. Silence about a percentage is therefore no breach, and a percentage pinned on a room that never printed one would be an invention.
6
Where the method stops working
Expectation is an average and not a forecast of one session. Across a small number of small spins the spread either side is wide, and most of it falls below the average, since the average is held up by outcomes that hardly ever arrive. So a figure here describes the middle of a lopsided range rather than a likely result.
The method prices a shape of term rather than a live offer. Terms move, and a sentence written against whatever was published last month is wrong this month, which is why the live wording is carried by the listing and never quoted in this prose.
Variance can clear a floor that expectation cannot, and nothing in the line prices luck. The model also assumes an obligation gets cleared at all: where a clock runs out first, the whole credit becomes residue and the arithmetic above overstates what survives.
Tax sits outside the line too. Remote gaming duty is charged to the operator, and the test is the customer’s usual home rather than the operator’s licence. Nothing on this site is advice about any individual’s tax position.
The offers linked from this site hold no Great Britain licence, which is the label belonging on every page and on this one too. Absent with it are a cap on the wagering multiple, a ceiling on a slot stake, a register that closes every licensed account at once, and a complaint that ends somewhere approved. Each is costed at off the register, and the protections a reader keeps whatever a cashier does are listed at staying in control.