Link
To be honest, I've no idea about the credibility of this report (and it does seem high) but it's interesting nonetheless.
The West is threatening further sanctions should Russia proceed with the formal annexation of Crimea. There is no need. The crisis has already cost Russia $187bn so far and almost certainly wrecked any chance of economic growth this year. And the impact of the crisis could do roughly $440bn worth of damage over the whole year – and that is before the West inflicts a single cent's worth of sanctions.
To be honest, I've no idea about the credibility of this report (and it does seem high) but it's interesting nonetheless.