-80.52% is the change from 657 to 128
Calculation steps:
[( 128 - 657 ) ÷ 657] x 100 = -80.52%
Formula
Percentage change = [(128 - 657) / 657] x 100
Subtract the new number by the original number
128 - 657 = -529
-529 ÷ 657 = -0.8051750380517504
-0.8051750380517504 x 100 = -80.52%