How Many of the 60% Turn Into a Long Term Engagement?

So if you're closing like 60% of these and that seems like pretty much 100% of them want you to stick around during implementation to oversee things keep everything on track be available as a resource how many of the 60% actually do turn into that second stage longer term engagement? So for the project I'm calling a project one it's like your standard three three three tiered three option proposal so there if there's a specific timeline possibly in the project I could say I would there's a fee as one of the product delivery. And then there's like lower levels of just casual slack support like just slack support but with no it's totally reactive that would be the sort of the lower level