Hi efg123,
The currency of the account will determine what currency it reconciles in. If the account is set up with USD, the Reconcile screen will display the USD amounts, and if AUD then the Reconcile screen displays AUD amounts.
Are you able to provide us with some more information about exactly where you are seeing this amount showing as AUD $83 when it should be $128? Alternatively, you are more than welcome to reach out to our Support Team directly here so they can get eyes on exactly what you are seeing and take steps as required.
-Kass