There is another simpler equation that does the same thing.

EV = (our equity)(total pot) - (amount to call)

total pot = the size of the pot after our call is added to the pot

So using spoon's example:

Quote Originally Posted by spoonitnow
So let's look at an example. Suppose that heads up after our opponent goes all-in for $4 the pot is $10 and we have 18% equity against his range. What is the EV of a call?
The other equation would look like:

EV = (0.18)($10 + 4) - 4
EV = 2.52 - 4
EV = -$1.48

Just thought I would throw that out there.