<Invoice>
    <!-- code omitted for clarity -->
    <cac:InvoiceLine>
        <!-- code omitted for clarity -->
        <cac:Price>
            <cbc:PriceAmount currencyID="EUR">90.00</cbc:PriceAmount>
            <cbc:BaseQuantity unitCode="H87">1.00</cbc:Value>
            <cac:AllowanceCharge>
                <cbc:ChargeIndicator>false</cbc:ChargeIndicator>                
                <cbc:Amount currencyID="EUR">10.00</cbc:Amount>
                <cbc:BaseAmount currencyID="EUR">100.00</cbc:BaseAmount>
            </cac:AllowanceCharge>
        </cac:Price>
        <!-- code omitted for clarity -->
    </cac:InvoiceLine>
</Invoice>