Okay thank you. So even though I was right to calculate the odds before my call of the bet is entered into the pot I went about it the wrong way and got the wrong percentage. So the steps to do this correctly would be to divide the pot by the bet size, which will give you a x : y ration. Then take 1/ (x + y) and that will give the percentage you must be higher than to call. I understand it I believe. Is there anywhere you know of with a quiz of some sort over pot odds that I can calculate and get the answers to, just to make sure I'm doing everything right?