The ConfigurableItemPriceListSaleCalculator assumes that both the ItemListPriceCalculator and ConfigurableItemPriceListCalculator have already run. ItemSalePriceCalculator adjusts the sale price and the amount of the ItemPriceInfo of the parent SKU, if the parent SKU is on sale. The ConfigurableItemPriceListCalculator then iterates through the subSKUs and modifies the list price and amount accordingly. The ConfigurableItemPriceListSaleCalculator then iterates through the subSKUs and modifies the sale price and amount of both the subSKUs and the parent SKUs.
For more information on this calculator, see the Price List Calculators section of the Using Price Lists chapter.
