Good Morning , sir . What can I do for you ?   Yes , I'd like to change Australian dollars for RIB .   How much do you want to change ?   I am not sure . What's the rate today ?   It's 1 Australian dollar to 6.1 Yuan RIB .   What was the rate yesterday ?   The rate was 1 Australia dollar to 6.5 Yuan yesterday .   Oh , the rate goes down .   It does , sir . Do you still want to have it changed now ?   Let me think ... Will the rate still go down tomorrow ?   I don't know , sir . But it won't change much . 