# FX-SCH-A-000057

Source: https://xmlvalid.com/rules/FX-SCH-A-000057

> The VAT category tax amount (BT-117) in a VAT breakdown (BG-23) where VAT category code (BT-118) is "Standard rated" shall equal the VAT category taxable amount (BT-116) multiplied by the VAT category rate (BT-119).

- Level: error
- Rule sets: Factur-X BASIC rules 1.09
- Context: `//ram:ApplicableHeaderTradeSettlement/ram:ApplicableTradeTax/ram:CategoryCode[.='S']`
- Test: `(abs(xs:decimal(../ram:CalculatedAmount)) - 1 < round(abs(xs:decimal(../ram:BasisAmount)) * ../ram:RateApplicablePercent) div 100 ) and (abs(xs:decimal(../ram:CalculatedAmount)) + 1 > round(abs(xs:decimal(../ram:BasisAmount)) * ../ram:RateApplicablePercent) div 100 )`

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