[BR-100-GST-SG]- Total Amount including GST in SGD must be numeric and have maximum of 2 decimals
BR-100-GST-SG
cac:AdditionalDocumentReference[cbc:DocumentTypeCode]
(cbc:DocumentTypeCode='sgdtotal-incl-gst' and cbc:DocumentDescription castable as xs:decimal and string-length(substring-after(cbc:DocumentDescription,'.'))<=2) or cbc:DocumentTypeCode != 'sgdtotal-incl-gst'