The following are the biggest percentage decliners on the TSX Venture Exchange in mid afternoon trading with their price movements CENTENARA MINING (CT.V), $0.07, 0.04, 36.36% EXO U (EXO.V), $0.10, 0.05, 33.33% WILTON RESOURCES (WIL.V), $0.18, 0.07, 28.00% RESERVOIR