Item price discount The total discount subtracted from the Item gross price to calculate the Item net price. About ID IBT-147Cardinality 0..1Section SharedName Item price discountSyntax binding ubl:Invoice / cac:InvoiceLine / cac:Price / cac:AllowanceCharge / cbc:AmountRules IBR-083: Charge on price level (ibt-147) is NOT allowed. Only value 'false' allowed.IBR-111: Item price discount (ibt-147) MUST occur maximum once.