Curious as to what sort of work you're doing as well...
Back of the envelope / from memory? Leads (meetings) with ~1/10 contacts and projects from ~1/3 meetings.
I do Wordpress development, online advertising, search engine optimization, and social media work. It sounds like I might fall into both of your markets — marketers who need a solution for wordpress development / tweaks and wordpress developers looking for projects.
If you're interested in chatting, shoot me an email at firstname.lastname@example.org.