-27.33% is the change from 439 to 319
Calculation steps:
[( 319 - 439 ) ÷ 439] x 100 = -27.33%
Formula
Percentage change = [(319 - 439) / 439] x 100
Subtract the new number by the original number
319 - 439 = -120
-120 ÷ 439 = -0.2733485193621868
-0.2733485193621868 x 100 = -27.33%