The following are the biggest percentage decliners on the TSX Venture Exchange in mid afternoon trading with their price movements PROSPECT PARK CAPITAL (PPK.V), $0.08, 0.07, 46.67% THE CANADIAN BIOCEUTICAL (BCC.V), $0.15, 0.03, 16.67% MITRA ENERGY (MTE.V), $0.20, 0.06,