What does %ROI mean in the tipping ladder?
%ROI stands for percentage return of investment. Suppose over the past year a tipster gambled $1,000 and makes a profit of $100, than his %ROI would be $100/$1000 = 10%. This means for every dollar he bets, he makes 10% profit. There are a number of ways to judge how good a tipster is going. If someone has made the most amount of money, it could be due to the fact they make lots of less successful bets, but someone with a large %ROI might make a fewer number of more successful bets.
