[EricW]

I was telling my friend how after 172 sit n gos, my ROI is 20%.

He also plays sit n gos but on a different site. He was given a free 50$ bonus for signing up. His bank roll is now 95$ or something. He says his ROI is infinity.

I keep telling him that that's flawed logic because the money is yours, each time you make a buy in, it's an "investment" and the ratio between money invested and profit is the ROI

He keeps saying that on a whole, his ROI is infinity because he didn't make a deposit. Then I said by his logic, I made a 50$ deposit and now my bank roll is 815$ so my ROI is 1500%.

Please clarify this so I can tear into my friend.