-89.17% is the change from 923 to 100
Calculation steps:
[( 100 - 923 ) ÷ 923] x 100 = -89.17%
Formula
Percentage change = [(100 - 923) / 923] x 100
Subtract the new number by the original number
100 - 923 = -823
-823 ÷ 923 = -0.8916576381365113
-0.8916576381365113 x 100 = -89.17%