How does monetary policy affect the exchange rate?

The Russian currency rose strongly in transactions after noon today, Friday, affected by the decision of the Russian Central Bank, reduced the main interest rate by 1% to 17% annually.

By 13:38 Moscow time, the Chinese yuan exchange rate decreased by 1.28% to 11.791 rubles, according to the data of the Moscow Stock Exchange. As for the “Forex” currency market, the exchange rate of the reference dollar decreased by 3.21% to 81.7832 rubles, while the reference euro exchange rate decreased by 0.55% to 98.59 rubles. The dollar on the Moscow Stock Exchange, the yuan exchange rate has become the true indicator of the ruble, and the yuan trading in the stock exchange is from 10:00 to 19:00 Moscow time. During these hours, the exchange rate of the American or European currency can be calculated through the exchange rate of the dollar or the euro against the yuan in the “Forex” market, and then through the yuan exchange rate to the ruble in the Moscow Stock Exchange. This reference price is used as a major standard for dollar and euro trades outside the stock exchange against the ruble. The stock market and in the stock market fell as an index of the Moscow Stock Exchange after the issuance of the Russian Central Bank’s decision on the interest rate. The Russian Stock Exchange Index decreased by 1.25% to 2872.88 points, while the stock exchange index for shares in the dollar RTS declined by 1.2% to 1056.42 points. (Seventh Day)