Factoring implied odds into FE and PE.

[Isles]

I am trying to aply the implied odds to my draw equity.

Can someone tell me if I have this concept correct?

If I have the nut flush draw on the flop my pot equity is at least 39% for the draw.

If the pot is $100, and I bet $100, the total pot is $300.

If I can expect my opponent will call a half pot bet at least 50% of the time, then I can factor in another $150/2 or $75.

So for my $100 bet I am getting a total of $275, which is 36%, making my bet +EV.

Is this correct?