Method sheet Revision 1 Checked 15 October 2026
How a receipt is struck
Every total on this site comes out of one expression, and this page unpacks it letter by letter. A credit of £25.00 keeps £15.00 at a ten times requirement and keeps nothing at all at forty.
£25.00 of credit, £1,000.00 of turnover owed, £0.00 kept
1
The line, letter by letter
The whole method is one piece of shorthand:
E = B × (1 – (W × (1 – RTP)) / g)
Spelled out in words: what a reader keeps equals the credit multiplied by one less the cost of turning it over.
E is the remainder, and it is the figure every sheet here is built to reach. B is money credited, measured at what it is worth rather than at what it is called. W is the number of times a cashier wants that credit turned over before any of it may leave. RTP is the share of staked money a game hands back across a long run of play. And g is the weight a game carries towards the requirement, where one means a pound staked counts a pound.
The product W times one minus RTP, divided by g, is the fraction of the credit the requirement consumes. Subtract that fraction from one and multiply by the credit, and the answer is in pounds.
2
What B is, and where arithmetic goes wrong
Most arithmetic about bonuses goes wrong at B, and the mistake is always the same: using the face figure.
Where a credit arrives as cash, B is the cash. A £25.00 bonus has B of £25.00 and no further working is needed. Where it arrives as cycles, B is what the cycles average back, and that is a smaller number than the face. Two hundred and fifty cycles at 10p come to £25.00 at face, and a game paying 96 per cent averages £24.00 of that back.
So the same headline carries B of £25.00 in one shape and £24.00 in the other, and the difference is the house edge taken before any condition has been read.
Where a reader’s own deposit is involved it is never part of B, and the two sides are run through the line separately and then added. A credit the reader paid for is not a credit. It is a purchase, and it belongs on the other side of the total. That is the whole reason matched money is kept in a section of its own.
3
Which figures are assumptions
Only one of the figures these sheets work at is anybody’s published rule. The other three are assumptions, and they are named as such wherever they are used.
A cycle at 10p is an assumption, and a hard one to avoid, because no primary source anywhere states what a free cycle is worth. A 96 per cent return is an assumption. It is a round figure near the middle of the band slot software is built to, and it is used so that one sheet can be set against another. Forty times is an assumption about this corner of the market rather than a term read off anybody’s cashier. Whole weighting is an assumption too, and it is the generous one: a game that contributes under its full stake pushes a requirement up, never down.
The published rule among them is the ceiling and not the market rate: since 19 January 2026 a Great Britain licensee may put no more than ten turns on bonus money. That ceiling is quoted on these sheets as a ceiling, and never as what an offshore cashier asks.
A return a room does not publish cannot be asserted, and nothing on this site asserts one. A licensed game is not even obliged to print a percentage. Four items sit in the standard under the word or, so a margin, or the odds on a winning event, will do instead of a return figure. So where a game’s own figure is unavailable, 96 per cent is stated as the working assumption and labelled as one, and the game’s real return stays unknown.
Holding the figures still is what makes eighty-five sheets a set rather than a pile. A sheet that has to move one of them says so in the sentence that moves it, and gives the reason on the spot.
4
Twenty-five, and where it comes from
One division gives the figure that decides every requirement on the site. A game returning 96 per cent keeps 4p of every pound put through it, so a credit can pay for twenty-five turns and no more. The derivation is a single division: 0.04 into one goes twenty-five times.
At twenty-five turns the credit is exactly consumed and the answer is nought. Under that, something survives. Over it, the line goes negative and a reader keeps nothing.
The figure is not fixed in law and it is not fixed at all, being one over the margin a game keeps: a 92 per cent game breaks even at twelve and a half turns, and a 97 per cent game at thirty-three and a third. A ten times requirement on a 96 per cent game keeps 60 per cent of a credit, which is the best a Great Britain licence now permits anybody to offer.
5
A total struck in pounds and pence
Take a credit of £25.00 with a requirement of forty times over it, on the figures this site holds still.
Forty turns of a £25.00 credit means £1,000.00 has to pass through a game before anything may leave. A 96 per cent game keeps 4p in each staked pound, so £1,000.00 of turnover costs £40.00. £40.00 of charge against £25.00 of credit cannot be paid, so the credit is gone and the shortfall is £15.00.
The line agrees: one minus 1.60 is minus 0.60, and £25.00 multiplied by minus 0.60 is minus £15.00. The kept figure is therefore £0.00, and the £15.00 records how far past the credit the requirement reached.
Now put the same credit under the British ceiling. Ten turns of £25.00 is £250.00 of turnover, costing £10.00 and leaving £15.00 in hand. The same credit, the same game, and £15.00 of difference in what is kept, decided entirely by the multiple written over it.
| The step | At forty times | At ten times |
|---|---|---|
| Credit, counted as B | £25.00 | £25.00 |
| Turns asked | 40 | 10 |
| Turnover owed | £1,000.00 | £250.00 |
| Charge on the turnover | £40.00 | £10.00 |
| Kept at the foot | £0.00 | £15.00 |
£15.00 kept at ten turns, £0.00 at forty, on one £25.00 credit
6
What the line does not price
The line prices the play-through and nothing else, and a sheet that stopped there would be dishonest. Every other condition a cashier can write is a further debit, and each one gets priced separately on the sheet that is about it.
- A ceiling over what bonus winnings may be taken out caps the total after the line has been run, and a large multiple and a low ceiling can each reduce an offer to nothing on their own.
- A window inside which the turnover has to be finished converts the requirement into a rate of play, and a rate of play is a different question from a quantity.
- A maximum stake while a credit is live sets the smallest number of cycles the turnover can be done in, which decides how long it takes.
- Games excluded, or counting at less than their stake, raise the staking needed without touching the multiple at all.
- A payment method excluded from qualifying can remove the offer after the deposit has been made, which is a debit of the whole credit. That subtraction has its own section in the rail.
- Unused cycles expiring, or arriving in instalments, moves part of the credit beyond reach and shrinks B before the line is run.
Then there is variance, which the line cannot touch. An average is a statement about repetition and not about one evening. A short round of cycles on a slot whose big prizes are rare will most often return less than its average, since a few outcomes that hardly ever arrive are what lift the average in the first place.
One further condition resists pricing altogether, and the honest thing is to say so. A term letting an operator shut an account down, or withhold winnings, at a discretion of its own has no figure attached to it, because its value turns on a decision nobody can model. A clause of that shape cost £170,000 on 3 July 2025, the regulator finding the fair and open condition breached and saying terms of the kind lack transparency. What that case does not do is strike the clause out, so a sheet may report the penalty and the condition breached and must not call the term void.
7
What cannot be asserted at all
Some things a reader would like priced cannot be priced from any source that may be cited here, and listing them is part of the method.
A room’s return, where the room does not publish one, is not available to this site and is never guessed at. The cash value of a free cycle is not set by any published rule, so 10p is a stated assumption and nothing more. Whether the ten turn ceiling reaches a free cycle in the first place is unpublished in both directions.
No current table of how much each game contributes towards a requirement is published anywhere citable, so a contribution figure never appears here as a fact. No standard ceiling on bonus winnings is published either, and a sheet that quotes one is quoting a particular set of terms rather than a rule.
How multiples, payout ceilings and the price of a cycle vary across the offshore market is not published, so no average of them is printed. Which licence any particular brand holds is not published, so a licence is described by what it requires and never attached to a name. What a licence does require, and what its absence costs, is set out in off the register.
How quickly a named cashier pays is not something this site can establish, because establishing it would mean opening an account and nobody here does that.
8
Rounding, and showing the working
Money is carried to the penny and written with both decimal places, so £4.80 rather than £4.8. A total is rounded once, at the end, and never rounded in a direction that flatters an offer. Percentages are given as they are published, and a figure derived from them is labelled as derived.
Where the line returns a negative number, two figures are printed: the kept figure at £0.00 and the shortfall, which measures how far the requirement overshot. A kept figure of nought is a result and not a failure of the method, and a sheet that reaches one prints it in the same type as any other total.
The working is shown in every case, so a reader who disputes an assumption can rerun the line with their own. Who draws these sheets is on who prints this sheet, and the commercial arrangement that pays for them, which touches none of the arithmetic here, is on how this sheet is paid.