~20 000 emails sent | ~6 667 people contacted over 20 weekdays

% of the people contacted who reply at all, whether positive or not.

% of replies that are positive: anything that is not a no, from a question about price to a request for a call

% of positive replies that book a call. A clear request for a call nearly always books; a question about price rarely does

% of booked calls that show up — and the only ones you pay for

% of held calls that close (Default: 20%)