To loose 90% from the maximum value is a very bad results. People lost a lot of money during 2018 especially crypto hodlers.
I still say that -90% for 2018 is a good result. This is only -10 times. Much worse when the asset fell 50 - 100 times. And there are many. I have some token that has lost 250 times its value. This is a great dump
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A coin that lost in its price 250 times is unlikely to once again be worth what it cost before falling. Most likely this scam coin.