InvoiceLine and VAT inclusive quoted pricing

Hi all,

I am still trying to get my head around UBL, so please forgive what may
be a dumb question.

Under each line of an invoice, it is possible to list both the quantity
of goods and the price the goods are set at, but I cannot seem to find a
clear way to express whether the price is quoted including VAT, or
excluding VAT.

In certain circumstances, rounding can cause the conversion from a VAT
inclusive price to a VAT exclusive price and back again to lose enough
precision that the final quoted price is out.

How does a UBL invoice handle this case?

Regards,
Graham
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