If I'm not mistaken Stake.com spends £10 million a year to sponsor Everton. This is the biggest fund that is quite commensurate if Everton can perform well next season. To that end, this partnership will determine whether adoption will come from fans to bet on their favorite team. Ideal output for Stake.com.
That's almost 2x higher than stake contract with Watford indeed it is still worth it when compared to the estimated salary of Everton players with Warford
If we look at the value of this contract , we can guess the total stake income is each year it should be 10x more than the contract value