assuming you are btn and shove 10bb 35% and both sb and bb call 11% range, then they both fold 79.21% of the times, so when you shove and they fold on average you win 0.7921*1.5bb=1.188bb
when called you have 39% equity, so you loose 10-20.75*0.39(average pot when bb or sb calls)=-1.91bb
so you loose 1.91-1.188=0.72bb each time you shove
that's without both of them calling
and now assuming they still call 11% our equity vs their calling range should be
10-20.75*X=0
X=10/20.75
X=48.2%
so we need to shove just about 12%, which looks retarded
someone correct me if i'm wrong