let's see what could have be the reason for this drastically continues price falling.
There are many reasons which affect the price of Bitcoin. If a negative news regarding any exchange or big companies associated with Bitcoins comes in public, then people just panic and sell their Bitcoins. As there is more number of sell orders then buy orders for Bitcoins, this makes the price fall more. This signifies that when the demand is low, the price also goes down. This is one of the main reason for which we see drastic change in the price of the coin.