I've been playing with coordinate data and want to be able to make a box somewhere in the middle of the spread of data. I was hoping that someone could confirm this formula:

=(countif(A1:A10,"=-1")-countif(A1:A10,"1"))+(countif(B1:B10,"=-1")-countif(B1:B10,"1"))

Am I going about this all wrong? The answers spit out seem reasonable, but I haven't found anything on this topic on the web. Thank you for any help that can be provided.