I don't get what you're trying to say
You can't enter a value there that is higher than 99,999,999.99. And there is no field indication that this value is limited by that amount. Also I think the limit should be increased to 1 billion, but that goes to a technical side.
Realistically, websites based in countries undergoing hyperinflation list things for sale in other currencies - USD or EUR, usually.
There's at least one big Vietnamese XF forum though isn't there, and the Dong is 20,000 to the USD, so that ten million limit would be worth about $5,000 to them. Still a whole heck of a lot for a resource, but not unimaginable, so maybe an extra decimal place or two would be handy - or a floating point, or something.