=+SI(ESTERR(SOMMEPROD(($A7=Mutuelle)*($C7=Aff.1)*($D7=Aff.2)*($B7=Libelle)*(F$6=Date)*((operation="achat")+(operation="achattransfert"));Quantite)-SOMMEPROD(($A7=Mutuelle)*($C7=Aff.1)*($D7=Aff.2)*($B7=Libelle)*(F$6=Date)*((operation="vente")+(operation="ventetransfert"));Quantite));0;SOMMEPROD(($A7=Mutuelle)*($C7=Aff.1)*($D7=Aff.2)*($B7=Libelle)*(F$6=Date)*((operation="achat")+(operation="achattransfert"));Quantite)-SOMMEPROD(($A7=Mutuelle)*($C7=Aff.1)*($D7=Aff.2)*($B7=Libelle)*(F$6=Date)*((operation="vente")+(operation="ventetransfert"));Quantite))+E7