guys how often i have to defend bb.
For example villain opens from bu 13%.
I am on BB.
SB folded
His size is 2.5 bb

So 2.5/2.5+1.5=0.625
So he will get auto profit if i will fold more then 62%
should I defend my BB 100-62=38 ?

Or I should see on a Pot odds?