Information from the official c.bank web site
According to the information posted at the official web site of the central bank of Ukraine, on December 5, the c.bank established the following official hryvnia exchange rates vs world currencies:
100 USD – 736.1400 hryvnias (on Dec 4 – 738.1900 hryvnias)
100 EUR – 929.0087 hryvnias (on Dec 4 – 931.8172 hryvnias)
10 RUR – 2.6331 hryvnias (on Dec 4 – 2.6438 hryvnias).