I think that is normal and to be expected knowing that it is bitcoin.  We all know how volatile bitcoin is,  depending on what is happening on the Market.  There are many factors affecting the decreasing and the increasing of the value of bitcoin, but I think sooner it will increase.  It is because many people will actually invest more for the reason that the value is lower than before,  and the more people investing the higher the value it will be. So don't panic,  I think it is normal.