-55.24% is the change from 286 to 128
Calculation steps:
[( 128 - 286 ) ÷ 286] x 100 = -55.24%
Formula
Percentage change = [(128 - 286) / 286] x 100
Subtract the new number by the original number
128 - 286 = -158
-158 ÷ 286 = -0.5524475524475524
-0.5524475524475524 x 100 = -55.24%