-96.55% is the change from 522 to 18
Calculation steps:
[( 18 - 522 ) ÷ 522] x 100 = -96.55%
Formula
Percentage change = [(18 - 522) / 522] x 100
Subtract the new number by the original number
18 - 522 = -504
-504 ÷ 522 = -0.9655172413793104
-0.9655172413793104 x 100 = -96.55%