Bitcoin went from 7800 to 6300 with lots of room to drop. A lot of money vaporized.
Fiat money?
Less than a 20% drop so far...BTC did over a 30% drop in Sept. to $3542., and was back up to $7500. by the 1st of Nov....volatility is to be expected in a asset with a smaller market cap ($105 billion or so). Money was streaming into Bitcoin over the last month due to the anticipated “SEGWIT2X” fork (almost 2x your money) but it got called off, so money is now flowing back out to other alt-coins.