-27.97% is the change from 858 to 618
Calculation steps:
[( 618 - 858 ) ÷ 858] x 100 = -27.97%
Formula
Percentage change = [(618 - 858) / 858] x 100
Subtract the new number by the original number
618 - 858 = -240
-240 ÷ 858 = -0.27972027972027974
-0.27972027972027974 x 100 = -27.97%