Hi @The Thunder From Down Under
I'm assuming you're asking about the Goal Kick Quality Panel. You can find some information about this in Options->Instructions->Match Display:
The panel is intended to display how your players goal kicking accuracy is effected by their positioning relative to the goals and relative to other players. Some examples of when your player will have a tougher time at kicking for goal are:
when they are at a tough angle to the goals.
when they are under pressure from opposition players.
when they are trying to kick while sprinting.
when the kick has been overpowered.
I don't see a difference