NEW YORK (AP) â¿¿ A look at the 10 biggest percentage decliners on New York Stock Exchange at the close of trading: Checkpoint Systems Inc. fell 21.5 percent to $11.31. Agnico-Eagle Mines Ltd. fell 18.5 percent to $46.51. Demand Media Inc. fell 13.4 percent to $5.62. Comerica Inc. fell 10.5 percent to $23.13. AuRico Gold Inc. fell 9.5 percent to $9.10. Western Digital Corp. fell 9.3 percent to $24.44. Overseas Shipholding Group fell 9.2 percent to $13.30. Endeavour Silver Corp. fell 9.2 percent to $9.04. Chemtura Corp. fell 8.6 percent to $10.64. Piper Jaffray Cos fell 8.6 percent to $18.45.
