Over the past 24 hours, the cryptocurrency market dropped more than $22 billion, falling from $343 billion to $321 billion in market valuation.
the numbers you are reporting are not market "valuation". in fact they have nothing to do with value. these numbers are market capitalization which doesn't show anything at all even though people are using it by mistake to rank different coins!
Bitcoin fell by 5 percent, while other major cryptocurrencies recorded larger losses, dropping by more than 7 percent.
the altcoin dumps have always been much more severe. and there is a theory these days that the altcoin dumps is actually pulling bitcoin down no the other way around.