A McDonald’s Big Mac costs 2.44 yuan in China, but costs $4.20 in the United States. Assuming that purchasing-power parity (PPP) holds, how many Chinese yuan are required to purchase 1 U.S. dollar?

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A McDonald’s Big Mac costs 2.44 yuan in China, but costs $4.20 in
the United States. Assuming that purchasing-power parity (PPP) holds,
how many Chinese yuan are required to purchase 1 U.S. dollar?

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