-52.39% is the change from 439 to 209
Calculation steps:
[( 209 - 439 ) ÷ 439] x 100 = -52.39%
Formula
Percentage change = [(209 - 439) / 439] x 100
Subtract the new number by the original number
209 - 439 = -230
-230 ÷ 439 = -0.5239179954441914
-0.5239179954441914 x 100 = -52.39%