-87.02% is the change from 986 to 128
Calculation steps:
[( 128 - 986 ) ÷ 986] x 100 = -87.02%
Formula
Percentage change = [(128 - 986) / 986] x 100
Subtract the new number by the original number
128 - 986 = -858
-858 ÷ 986 = -0.8701825557809331
-0.8701825557809331 x 100 = -87.02%