According to the research, the justified exchange rate of the Ukrainian hryvnia to the U.S. dollar should be at UAH 7.3 instead of UAH 23.4.
Only the Venezuelan bolivar and the Russian ruble are ahead of Ukraine’s currency. For example, the average price of a Big Mac in America in January 2016 was $4.93; while in Venezuela it was only $0.66 at market exchange rates. So the “raw” Big Mac index says that the bolivar was undervalued by 86.5% at that time.
The price of a Big Mac in Russia was RUB 114, or $1.53, so the Russian ruble is undervalued by 69%.