-85.01% is the change from 854 to 128
Calculation steps:
[( 128 - 854 ) ÷ 854] x 100 = -85.01%
Formula
Percentage change = [(128 - 854) / 854] x 100
Subtract the new number by the original number
128 - 854 = -726
-726 ÷ 854 = -0.8501170960187353
-0.8501170960187353 x 100 = -85.01%