[BR-CO-10-SG]-Sum of Invoice line net amount (BT-106) = Σ Invoice line net amount (BT-131).
BR-CO-10-SG
cac:LegalMonetaryTotal
(round(xs:decimal(cbc:LineExtensionAmount) * 10 * 10) div 100 = (round(sum(//(cac:InvoiceLine|cac:CreditNoteLine)/xs:decimal(cbc:LineExtensionAmount)) * 10 * 10) div 100))