Report Within a report

I would like to create a report that would go and show me values related to that number only. For context I have a report given below and if anyone clicks the mumber underlined in blue color should open details related to those numbers only. I have created a detail tab but I dont know how to link it between them.  Any ideas.

This below is a detail tab and i have to link the above "count of full pros" to  "fullpro#" below and it should only populate values that are linked to the clicked value from the image above. 

Any ideas how to do it. I tried paginated report.