most people compare a currency to the usd since the usd is the global reserve currency. in general it doesn't matter how the ruble compares to the dollar exactly, but the ruble in general is falling against almost all currencies including the chinese yuan.  this means that anything they buy from china is going to be noticably more expenise than this makes their current inflation problem even worse.  a weaker currency does help exports, but this doesn't help russia since people pay with the local currency. an example of this is india buying russian oil. russia now has a ton of indian money, but this is useless to them because they don't really want indian goods.
United States