The formula is simple: GGR equals total bets minus total wins. If players on your referred accounts wager 100,000 in a month and win back 92,000, GGR is 8,000. It can swing hard month to month, and it can go negative, because a single large player win can wipe out the margin on everyone else. That volatility is a fact of the product, not a reporting error.
GGR is the top line of every revenue share calculation, but almost no affiliate deal pays on it directly. Operators deduct bonus costs, payment processing, gaming taxes, platform fees, and sometimes an admin fee to arrive at NGR, and the RevShare percentage applies to that smaller number. A deal advertising 40 percent can pay very differently depending on what sits between GGR and NGR, so the deduction list matters more than the headline rate.
Regulators and operators also use GGR as the standard measure of market and product size, and gaming taxes in many jurisdictions are levied on it. For an affiliate reading a program's reporting, GGR per player is the cleanest signal of raw player value; comparing it against the NGR you are paid on tells you exactly how much the operator's deductions cost you each month.
Why it matters
If you sign RevShare deals without understanding GGR, you cannot audit your own statements. Tracking the GGR-to-NGR gap per operator reveals which programs deduct aggressively, which players are genuinely valuable, and whether a lower percentage on a cleaner NGR definition beats a higher percentage on a loaded one.
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