Help needed to divide no: of enquiries quoted to no of deals won ?

[#1]

Hey Guys,

I' trying to get an expression hit rate= Count(Deals Closed)/Count(Enquiries Quoted)

When I click on YES button (see attached), I get the total no: of enquires quoted

When I click on Deals closed button, I will get total no:of deals closed

I want to get an expression hit rate= Deals Closed/Total Enqs Quoted