When the pandemic virus is not yet started the highest price of bitcoin is 10,000$ and up. After that the bitcoin price are slowly go down but not so deeply and it was a normal rate in a market. But when the pandemic virus called COVID-19 is started and spreads all over the world there’s a huge of impact that happened with their lifestyle everything has changed. The bitcoin market price neither survived due to coronavirus pandemic. I guess the COVID-19 is one of the reason why bitcoin price are deeply drop.
actually the Virus is spreading the world since last year thats why it is called Covid-19 stands for 2019 virus but only become pandemic in mid of march and same time the market starts to fall hard.
but the Post of OP maybe added the impact thats why the market falls so fast that day March 12 and until now the effect is still making the value stays Down contributing by those Holders that starts to sell now because of not enough funds from the quarantine.