I have a discussion with a friend that id like to solve.

We are analysing the EV of check/call a hand like QTo on a 953r flop after a 55% 2.5x BTN when we are on the Big Blind.

I did a very simple simulation on cardrunners EV:

We xC a 0.60x cbetflop, and then we realize the 50% of our equity.

That gives me an EV for my xC of -1.49 (-149bb/100)

He says : The EV of folding is 0. And the EV of calling is -1.49. You have to fold flop. You have to acumulate that result with your preflop investment, for instance if you already invested 2.5bb and u lose 1.49 every time you xC, you are loosing 3.99bb (399bb/100) overall.

I say: We have already invested around 2.5bb preflop. We are already loosing -250bb/100 if we fold, the EV of folding is not 0. Loosing to 1.49 actually improves our result. We have to call.

Who is right ?

I think the doubt its about if crev have already compared the ev of my call with my preflop investment when it says that my ev is -1.49 ? or should i have to make that work comparing -2.5bbs of my investment, then looking which is the ev of the call and see if its better or not ?

I think i was clear, but my english is not the best, so if someone does not understand something please tell me, and i will try harder.