-83.92% is the change from 622 to 100
Calculation steps:
[( 100 - 622 ) ÷ 622] x 100 = -83.92%
Formula
Percentage change = [(100 - 622) / 622] x 100
Subtract the new number by the original number
100 - 622 = -522
-522 ÷ 622 = -0.8392282958199357
-0.8392282958199357 x 100 = -83.92%