-70.84% is the change from 439 to 128
Calculation steps:
[( 128 - 439 ) ÷ 439] x 100 = -70.84%
Formula
Percentage change = [(128 - 439) / 439] x 100
Subtract the new number by the original number
128 - 439 = -311
-311 ÷ 439 = -0.7084282460136674
-0.7084282460136674 x 100 = -70.84%