You can earn as much as you want, it depends in your amount invested, your bets and so on.
If you you re really lucky and also having good strategy you can even make huge amounts by gambling
i think only a few people can benefit greatly from gambling, they take advantage of great odds to earn enormous profits, although the risk will be
greater but when he occasionally win of course it will recover all losses, do parlay on the soccer betting is the most I prefer