-87.74% is the change from 522 to 64
Calculation steps:
[( 64 - 522 ) ÷ 522] x 100 = -87.74%
Formula
Percentage change = [(64 - 522) / 522] x 100
Subtract the new number by the original number
64 - 522 = -458
-458 ÷ 522 = -0.8773946360153256
-0.8773946360153256 x 100 = -87.74%