-89.81% is the change from 981 to 100
Calculation steps:
[( 100 - 981 ) ÷ 981] x 100 = -89.81%
Formula
Percentage change = [(100 - 981) / 981] x 100
Subtract the new number by the original number
100 - 981 = -881
-881 ÷ 981 = -0.8980632008154944
-0.8980632008154944 x 100 = -89.81%