Calculating Percentage Between 2 tables

I was responding to your comment about locations:  "Say Today there have been courses in 5 out of 10 locations, but yesterday there were couses in 10 out of 10 locations."  When I say that the location is irrelevant, I mean we don't do courses in actual locations.  The location is a piece of metadata about the employee and it will be used as a slicer, just like gender could be used, or job title, or something like that.  I thought I provided sample data in the beginning of this thread.  I can do that again, but I am not allowed to use dropbox on my computer, so that has always proven difficult for me to attach anything to these forums.