@James-Menhenitt The idea of the software is to find matches that fit the criteria you're looking for, so if you're filtering on player stats then it will find matches where either player meets your criteria. You can then click each match in the results to see the breakdown of all the stats for each player.
If you just want to see the percentage for a certain stat and you don't have any specific value in mind, just filter on greater than/equal to 0.