Sum of allowances on document level (BT-107) = Σ Document level allowance amount (BT-92).
cac:LegalMonetaryTotalxs:decimal(cbc:AllowanceTotalAmount) = (round(sum(../cac:AllowanceCharge[cbc:ChargeIndicator=false()]/xs:decimal(cbc:Amount)) * 10 * 10) div 100) or (not(cbc:AllowanceTotalAmount) and not(../cac:AllowanceCharge[cbc:ChargeIndicator=false()]))