Currency in Macau Macanese pataca (MOP). For 10 US dollars you can get 80 Macanese patacas. For 100 US dollars you can get 800 Macanese patacas. And the other way around: For 10 Macanese patacas you can get 1.25 US dollars.
Prices:
And if the trip plans are simply for a given region of the world, then maybe it will come out cheaper than in Macau in nearby countries? See prices in: Hong Kong, Taiwan, laoPDR, Vietnam, and Mexico.