For instance when using odds oracle to work out the EV of calling a shove when we have Ts9c5s6c vs AAxx in a 4 bet pot. In the hand I am trying to work out: 

I require 44%, which I will have on the top 40% of flops. If i create a square of these two points on the odds oracle graph. How do i go about working this area out exactly without a lot of maths. 

I remember last year i found a formula I can quickly plug into odds oracle to find the area but i have forgotten it.

Thanks.