Bitcoin has lost About 80% of its value in previous cycles

This post is just a review of the Bitcoin historical chart and I do not confirm or reject the findings of this analysis
Examining the drop% from its ATH in previous cycles shows that bitcoin has lost 80% of its value. Bitcoin is currently only 57% lower than its ATH. If this criterion is correct, Bitcoin should go another 23% lower than its ATh. That would be around $ 13,000