i think the 100% mean 6 star.... and they mean that is the greatest in your level....over that...mean your player is above your club level.... like the world class... superstar.... and yes...I also think that the % is kind of stupid.... like a exam in grade 3...100% mean you are great... but how to get 150% in grade 3 exam?? a grade 4 student does the grade 3 exam can get 150%?? that like stupid ~