How do you calculate exchange rates when trips are invoiced in USD and paid in CAD or vice versa? April 2, 2019 April 2, 2019 Randonnee Tours When paying an invoice in a different currency from the invoice, we use the exchange rate of the day (CAD/USD) as indicated by xe.com on the day we process the transaction. Previous postHow long does it take for my trip to be confirmed?Next postHow much of a deposit is required?