/** * @param \Generated\Shared\Transfer\RefundItemTransfer $itemTransfer * * @return void */ public function aggregate(RefundItemTransfer $itemTransfer) { $totalGrossPriceWithDiscount = $itemTransfer->getTotalGrossPrice() - $itemTransfer->getDiscountAmount(); $itemTransfer->setTotalGrossPriceWithDiscount($totalGrossPriceWithDiscount); }