-70.62% is the change from 439 to 129
Calculation steps:
[( 129 - 439 ) ÷ 439] x 100 = -70.62%
Formula
Percentage change = [(129 - 439) / 439] x 100
Subtract the new number by the original number
129 - 439 = -310
-310 ÷ 439 = -0.7061503416856492
-0.7061503416856492 x 100 = -70.62%