Reais Crisis. The value of the Brazilian reais (BRL. or RS) was BRL 1.77 to USD 1.00 on Thursday January 24 , 2008. It then plunged in value to BRL 2.38 to USD 1.00 on January 26,2009 . What was the percentage change in its value? What was the percentage change in its value? The percentage change in the Brazilian real's value is \%. (Round to two decimal places. A negative value must be entered with a negative sign.)