29.84% is the change from 439 to 570
Calculation steps:
[( 570 - 439 ) ÷ 439] x 100 = 29.84%
Formula
Percentage change = [(570 - 439) / 439] x 100
Subtract the new number by the original number
570 - 439 = 131
131 ÷ 439 = 0.2984054669703872
0.2984054669703872 x 100 = 29.84%