var effectiveBrutto: Long
Sum of brutto of all products with sale discount.
effectiveBrutto = SaleInfo.relativeDiscount != 0 ? SaleProductInfo.brutto * (10000 - SaleInfo.relativeDiscount / 10000) : SaleProductInfo.brutto - (SaleInfo.absoluteDiscount * SaleProductInfo.brutto * 10 / SaleInfo.brutto / 10)