-86.28% is the change from 656 to 90
Calculation steps:
[( 90 - 656 ) ÷ 656] x 100 = -86.28%
Formula
Percentage change = [(90 - 656) / 656] x 100
Subtract the new number by the original number
90 - 656 = -566
-566 ÷ 656 = -0.8628048780487805
-0.8628048780487805 x 100 = -86.28%