we won't know how realistic such a scenario could be in Bitcoin.
but if you ask about the possibility, of course, there is a possibility. regarding percentages, who knows?

currently, the condition of the world market is also not good. some news of the hacking that occurred on the cryptocurrency network could of course be a pretext for a dump that will happen more badly.
but at the current value of Bitcoins, $15k is a reasonable price in a gradual dump. I'm not sure there will be a dump that will take bitcoin straight down to $3.5k.
this year's decline has been incredible, I think there will be a moment for Bitcoin to stabilize first.