Russia economy: Why does rouble keep sliding?
Russia's president has warned of "catastrophic consequences" if the rouble continues to slide.
Vladimir Putin's comments come amid Western sanctions and the falling oil price.
Earlier, the country's finance minister said the combined cost to its economy has been $140bn.
The BBC examines how we got here.
Statistics according to latest official data for October 2014
24 Nov 2014
- From the section Business