The dollar fell below 80 rubles for the first time since early August. The settlement rate, which guides the over-the-counter market, fell 25 kopecks to 79.92 rubles by 9:27 a.m. Moscow time, according to preliminary reports. He hasn't been below 80 since August 3rd. The official exchange rate of the central bank on October 29 is still 80.87 rubles, and at the beginning of October it reached 85.7.