OREANDA-NEWS   The official dollar exchange rate, set by the Bank of Russia on November 28, reached 78.25 rubles, having decreased by 34 kopecks in a day. This is reported on the regulator's website.

The euro lost 72 cents, falling to 90.79 rubles. The yuan, which retreated below 11 rubles during trading on Thursday, ended up at 11.025 rubles.

During the day, the over-the-counter dollar exchange rate dropped below 78 rubles.

"On the side of the Russian ruble is the traditional peak of tax payments by exporters at the end of the month," Maxim Tymoshenko, director of the Financial Markets department at Russian Standard Bank, was quoted by Reuters as saying. The Russian business in question will have to make a monthly tax payment at the end of the week, and therefore its representatives usually accumulate ruble liquidity by selling foreign currency earnings.