-68.55% is the change from 407 to 128
Calculation steps:
[( 128 - 407 ) ÷ 407] x 100 = -68.55%
Formula
Percentage change = [(128 - 407) / 407] x 100
Subtract the new number by the original number
128 - 407 = -279
-279 ÷ 407 = -0.6855036855036855
-0.6855036855036855 x 100 = -68.55%