How We Calculate Real Bonus Value
Almost all the sites that compare bonuses do so on the basis of the headline figure. Thus $25,000 is always described as being more valuable than $500. However a $25,000 offer with 40x wagering on deposit and win plus bonus is clearly worse value than a $500 offer with 30x wagering on the bonus.
Our formula for Real EV (Expected Value) on a $100 deposit:
Example - Roobet ($100 bonus, 30x wagering, 97% RTP):
Turnover needed = $100 30 = $3,000
Expected losses during wagering = $3,000 3% = $90
Bonus value received = $100
Net Expected Value = $100 - $90 = +$10 per $100 bonus
?? Why Roobet Ranks #1 for Bonus Value
Roobet: 30x wager on the bonus, which isn't too bad. Aviator which has a 97% RTP also counts towards the wager. Expected value of wagering out the 100 bonus that gives you 3000 is 3% of 3000 which is 90 so you expect to be 10 ahead of the game. Also worth noting that crash games count towards the wager as well.
Why the BC.Game $25,000 Bonus Ranks Lower
BC.Game's 35x requirement applies to bonus + deposit combined. On a $100 deposit with a $100 bonus, you need to wager ($100 + $100) 35 = $7,000. At 97% RTP, that costs $210 in expected losses - to clear a $100 bonus. The headline is impressive; the math less so.
Even so, we consider it a good opportunity for those players that deposit $1,000+ where the potential of the large bonus offered by BC.Game can be really taken into account.
The Rollbit Cashback Exception
Rollbit's 5% weekly cashback on net losses is different from a standard bonus because it has no wagering requirement. The $5 per $100 lost is real money you can withdraw. For players who expect to lose (the realistic majority), guaranteed cashback can outperform a wagered bonus.
