-10 player definition?

[csa99]

Aaron Ramsey has a potential ability of -10 and some players have -9 but i dont get what these exactly mean ?
i understand when they have an ability of 180/200 but not the -10, -9 etc ?
please could someone enlighten me on the matter

 

[hugo999]

-10 170-200
-9 150-180
-8 130-160
-7 110-140
-6 90-120
-5 70-100
-4 50-80
-3 30-60
-2 10-40
-1 0-20

 

[csa99]

cheers mate

 

[Jake]

http://www.fm-base.co.uk/forum/f101/the-complete-ca-pa-thread-t48054.html

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