protected function UpdateItemInfo()
    {
        $this->dPriceTotal = $this->dAmount * $this->dPrice;
        $this->dTotalWeight = $this->dAmount * $this->fieldSizeWeight;
        $this->dTotalVolume = $this->dAmount * $this->dVolume;
        $this->dPriceAfterDiscount = $this->dPrice;
        $this->dPriceTotalAfterDiscount = $this->dPriceTotal;
        $this->dPriceTotalAfterDiscountWithoutVouchers = $this->dPriceTotalAfterDiscount;
    }