-98.71% is the change from 622 to 8
Calculation steps:
[( 8 - 622 ) ÷ 622] x 100 = -98.71%
Formula
Percentage change = [(8 - 622) / 622] x 100
Subtract the new number by the original number
8 - 622 = -614
-614 ÷ 622 = -0.9871382636655949
-0.9871382636655949 x 100 = -98.71%