# DT-CIUS-PT-168

Source: https://xmlvalid.com/rules/DT-CIUS-PT-168

> The BT-136 must equal the multiplication between the Invoice line allowance base amount (BT-137) and the Invoice line allowance percentage (BT-138), with an acceptance range of 1.00 € (it does not mean that this tolerance is accepted by the customer).

- Level: error
- Rule sets: CIUS-PT rules (Portugal, UBL) 2.1.1
- Context: `cac:InvoiceLine/cac:AllowanceCharge[cbc:ChargeIndicator = 'false'] | cac:CreditNoteLine/cac:AllowanceCharge[cbc:ChargeIndicator = 'false']`
- Test: `(not(exists(xs:decimal(cbc:MultiplierFactorNumeric))) and not(exists(xs:decimal(cbc:BaseAmount)))) or (((xs:decimal(cbc:BaseAmount) * (xs:decimal(cbc:MultiplierFactorNumeric) div 100) * 10 * 10) div 100) <= (xs:decimal(cbc:Amount) + 1.00) and ((xs:decimal(cbc:BaseAmount) * (xs:decimal(cbc:MultiplierFactorNumeric) div 100) * 10 * 10) div 100) >= (xs:decimal(cbc:Amount) - 1.00))`

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