Rio Games and the Brazilian Real. Ryan Lock had planned his trip to the Olympic Games in Rio de Janeiro, Brazil, for many months. He had budgeted and saved $16,700 for expenses while in Rio. But he had postponed exchanging the dollars for Brazilian currency, real (BRL or R ), until the very last minute on August 8th, doing it in the airport in the United States at BRL 3.2937=1.00 USD. Given the following average monthly exchange rates in 2016, when should he have exchanged the dollars for real to maximize his Brazilian spending money? (Click on the 2 icon to import the table into a spreadsheet.) The Brazilian real proceeds from exchange in January is BRL (Round to two decimal places.)