public PositionAchatBase(double prixBase, PositionAchatBase positionAchatBase) : base(prixBase, positionAchatBase.VolumeBase, positionAchatBase.Date, positionAchatBase.monnaieDeBase, positionAchatBase.monnaieDeQuote)
{
}
internal PositionAchatBaseFee(PositionAchatBase positionAchatBase, double fee) : base(positionAchatBase.CalculPrixBase(fee), positionAchatBase)
{
}