There is something wrong with the numbers in that chart. It is like people make charts and they just guess
If it is merely referring to the BIG dips, then maybe we could look at the BIG dips like this:
2011 - From $32 to $2 = 93.75%
2013a - From $263 to $63 = 76%
2013b - From $1,163 to $153 = 87%
2017 - From $19,666 to $3,124 = 84% (this one looks right)
2020 - From July 2019 $13,880 to $3,850 = 72% or alternatively From February 2020 - $10,200 to $3,850 = 62%
2021 - From late 2021 $69,000 to $15,479 = 87.5% and probably the one they are referring to is from early 2021 $64.5k-ish to $28.8k-ish. = 55%
But there have been various other BIG dips in the midst of those dips. There were many that were greater than 25%.. Difficult to have confidence in a chart that is not very close to getting the numbers right when they are specifically pointing out numbers in their chart... ..
I really appreciate this piece of information, sir, @JayJuanGee. The funny thing is that I have severally use this picture as a public reference, not actually knowing that it is not very accurate. Now I have a more accurate chart. Thanks.