-89.74% is the change from 858 to 88
Calculation steps:
[( 88 - 858 ) ÷ 858] x 100 = -89.74%
Formula
Percentage change = [(88 - 858) / 858] x 100
Subtract the new number by the original number
88 - 858 = -770
-770 ÷ 858 = -0.8974358974358975
-0.8974358974358975 x 100 = -89.74%