Jeterkid your math is way off.
When calcualting pot odds
to hit a draw such as an open-ended straight draw (8 cards that help you) or a flush draw (9 cards that help you) you take that number over the total number of unseen cards, not the # of cards left in the deck to be dealt.
So to hit an open-ended straight draw on the NEXT card you take 8/47 which is 17%.
To hit a flush on the next card it is 9/47 or 19%.
If you are calculating odds on hitting a flush on the next two cards (after the flop) you take the odds of hitting on both cards individually: 9/47 and 9/46 and add them together.
9/47 = .1914893 9/46 = .1956521 added together they equal ~ .387 or 38.7%
Dorkus...to calucate running flush cards for example you take:
9/47 multiply in 8/46 (.191489 x .1739130) = .033 or ~ 3.3%, so for those of you who chase running flushes, you will only hit them around 3-4 times out of 100.