NEW YORK (AP) — A look at the 10 biggest percentage decliners on New York Stock Exchange at the close of trading:

Primero Mining Corp. fell 8.9 percent to $5.13.

AVG Technologies N.V. fell 7.1 percent to $10.45.

Thermon Group Holdings Inc. fell 5.4 percent to $23.70.

MacGray Corp. fell 5.3 percent to $13.36.

Callon Petroleum Co. fell 5.0 percent to $6.03.

Entercom Communications Corp. fell 4.7 percent to $6.84.

Viad Corp. fell 4.6 percent to $21.50.

Weight Watchers International Inc. fell 4.5 percent to $54.66.

Swift Energy Co. fell 4.2 percent to $21.90.

Demandware Inc. fell 4.0 percent to $29.62.