"The Macanese pataca or Macau pataca (Chinese: 澳門元; Cantonese Yale: Oumún yùhn; Portuguese: Pataca de Macau; sign: MOP$;[4][5] ISO code: MOP) is the currency of Macau. It is subdivided into 100 avos (仙; sin), with 10 avos called ho (毫) in Cantonese .Macau has a currency board system under which the pataca is 100 per cent backed by foreign exchange reserves, in this case currently the Hong Kong dollar (itself backed by the United States dollar).[6] Moreover, the currency board, Monetary Authority of Macau (AMCM), has a statutory obligation to issue and redeem Macau pataca on demand against the Hong Kong dollar at a fixed exchange rate of HK$1 = MOP 1.03, and without limit.[7]'"
