I'm going to attempt to calculate the EV of shoving the nut flush draw in the following situation:

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP1 ($28)
MP2 ($31.50)
Hero (CO) ($27.35)
Button ($40.60)
SB ($27.60)
BB ($33.35)
UTG ($33.30)
UTG+1 ($25)

Preflop: Hero is CO with ,
4 folds, Hero bets $0.75, Button raises to $1.75, 2 folds, Hero calls $1

Flop: ($3.85) , , (2 players)
Hero checks, Button bets $3.25, Hero raises to $25.60 (All-In)


(Please don't comment on accuracy of ranges just yet, this is merely meant to be a procedural exercise for me)

EV for this play:

Villain's range for 3B'ing pre and cbetting flop:

99+, AQs+, KQspades, AQo+ = 30(pairs) + 12(AK) + 12(AQ) +1(KQspades) = 55 combos

Villan's calling range after I shove flop:

99+ KQspades = 30(pairs) + 1(KQspades) = 31 combos

So he folds (55-31)/55 ----> 24/55 or 44% of the time

My equity vs his calling a shove range is 39%

1. 44% of the time when he folds I profit $7.10 (Whats in the pot) EV= (.44 x $7.10) = $3.12

2. 56% of the time he calls and I either win or lose:

a) win = (.56 x .39)($55.05) = $12.02

b) lose = (.56 x .61)($55.05) = -$18.81

EV of shove = $3.12 + $12.02 - $18.81 = -$3.67

I just did this intuitively so pls point out any errors if you see any