I just noticed you were assuming he was calling with more than QQ+ AK. I think the way you're going about figuring that out is very confusing and probably inaccurate. I think it would be absurd to assume he calls your shove with a hand like AJs or KQs. I'll universalize the formula for you so you can plug different values:

EV = (fold%)*(18.5) + (1-fold%)*(equity)*(105.5 - rake) - (1-fold%)*(1-equity)*(96)