-85.6% is the change from 618 to 89
Calculation steps:
[( 89 - 618 ) ÷ 618] x 100 = -85.6%
Formula
Percentage change = [(89 - 618) / 618] x 100
Subtract the new number by the original number
89 - 618 = -529
-529 ÷ 618 = -0.8559870550161812
-0.8559870550161812 x 100 = -85.6%