-80.64% is the change from 656 to 127
Calculation steps:
[( 127 - 656 ) ÷ 656] x 100 = -80.64%
Formula
Percentage change = [(127 - 656) / 656] x 100
Subtract the new number by the original number
127 - 656 = -529
-529 ÷ 656 = -0.8064024390243902
-0.8064024390243902 x 100 = -80.64%