-85.25% is the change from 868 to 128
Calculation steps:
[( 128 - 868 ) ÷ 868] x 100 = -85.25%
Formula
Percentage change = [(128 - 868) / 868] x 100
Subtract the new number by the original number
128 - 868 = -740
-740 ÷ 868 = -0.8525345622119815
-0.8525345622119815 x 100 = -85.25%