-89.74% is the change from 887 to 91
Calculation steps:
[( 91 - 887 ) ÷ 887] x 100 = -89.74%
Formula
Percentage change = [(91 - 887) / 887] x 100
Subtract the new number by the original number
91 - 887 = -796
-796 ÷ 887 = -0.8974069898534386
-0.8974069898534386 x 100 = -89.74%