how do i factor in fold equity?

[jyms]

Percentage Villain has to fold for the play to be break-even

[littleogre]

Percentage Villain has to fold for the play to be break-even

A helpful link but i'm looking for how often villain needs to fold if we already know our estimated equity. for example this. We are on the turn.
villain leads out for 50 cents
effective stacks= 5.0
total pot before we bet= 1.5
our raise size= 1.5
our estimated equity= 32 percent
villains estimated fold percentage=22%
estimated call%=50%
estimated raise%=28 percent
pot size after we raise=3
villains 3-bet size= shove.

Is it +ev to bluff? I mean there are all sorts of programs that tell you how often villain needs to fold if our equity is say 45% so why are there no programs that tell you what our EQ needs to be if we know how often they fold/call/raise?

in the above example i know we win 1.5$ 22 percent of the time or 33 cents on average from him folding. we loose 42 cents on average from him raising. Where it gets really confusing to me is when they call. Because then we need to add in our hands eq versus their river betting range.