A friend of mine has put his hand up to help you.
Michael Ratner (owner of Compendium) is collecting some basic data that will assist retailers to understand where they are at - exactly - and how they compare.
He is braver than me, but it is a worthwhile exercise.
DOWNLOAD this simple spreadsheet and provide him with some basic percentages and you will get a huge benefit in return. It won't take long to do - JUST DO IT...