-85.15% is the change from 862 to 128
Calculation steps:
[( 128 - 862 ) ÷ 862] x 100 = -85.15%
Formula
Percentage change = [(128 - 862) / 862] x 100
Subtract the new number by the original number
128 - 862 = -734
-734 ÷ 862 = -0.851508120649652
-0.851508120649652 x 100 = -85.15%