[jesse8888]

Pot Equity isn't really the right term. Pot Equity is your equity in the pot based on your holding vs your opponents' holdings. For example, if you have AA and your single opponent has AKo, your pot equity is about 93% (that is to say if you played this hand 1000 times you would win about 93% of the money).

In a more complex situation, if you're in the big blind with QJs and 7 players have limped in, you can raise because your pot equity is surely more than 12.5% (this is the idea of "winning more than your fair share"). In that situation you don't know your exact pot equity, but against most reasonable hands for the limpers it will be somewhere in the 15 to 25 % range.

What I think you should focus on is the concept of "pot odds", which means "how much money is in the pot, and how much am I being asked to put in". If you're in the small blind and 4 players have already limped in, you're being asked to put 2/3rds of a bet into a pot that contains 5.333 bets already.

In order to decide if this is a good move, you should try to take a guess at your pot equity. How do you do this? Well, first you figure out what .6666666/6 is (this happens to be 11%). Then you decide if you have more than 11% pot equity; if you think you do, and think you play well postflop, a call is justified. If you don't or it's fairly close and you're not comfortable playing 6 handed out of position, a fold is in order.

Hope this helps.