Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion

I get 42% for those 2021 numbers, but then again I don't math much anymore.

47902 / 28775 = 1.66 -> 66%

sorry, that's NOT how % of change is calculated, but the result is correct anyway.
The formula is ((P2-P1)/P1)X100%=((47902-28775)/28775)X100%=66.4%
https://www.investopedia.com/terms/p/percentage-change.asp

sorry, if you learned calculating sums with fractions you will see that it's exactly the same as in the formula.
For keeping it short, I just allowed myself omitting the steps of deducting the 1 and changing to % which I thought everybody here would understand (apparently not...)

((47902-28775)/28775) = 47902/28775 - 28775/28775 = 1.66 - 1 = 0.66 and change it to % (I hope that's doable without a formula

)

didn't you have a PHD or something?

you are both correct, only Gachapin you need to add a x 100 to bring it to percentages....

Biodom: ((y - x) / x) * 100
Gachapin: ((y / x) - (x / x)) * 100 or ((y / x) - 1) * 100

here is another way to express it

((100 * y) / x) - 100
or
(100 * (y - x)) / x