Originally Posted by
3544quebec
Thanks for responding but despite the explanation I still have difficulty understanding how a fare can cost $AU8080=$US8600 and at the same time cost $US9870 and that both prices are correct for the exact same fare. I must be very thick

Because GDSs can calculate exchange rates using either the real exchange rate or the IATA one. Please read our response on the thread as it explains it with examples.