I am trying to show something that simply shows how many jobs are attached to each client in our system so we can track repeat business. 

For example, if I have a report of jobs closed this month, I want to be able to filter how many already had a job attached; or total number of jobs is greater than 1, etc. 

Or create a dashboard element with criteria, most recent job created this month and client has more than one job in the system. 

There doesn't seem to be anyway to do this, am I missing something?