30.75% is the change from 439 to 574
Calculation steps:
[( 574 - 439 ) ÷ 439] x 100 = 30.75%
Formula
Percentage change = [(574 - 439) / 439] x 100
Subtract the new number by the original number
574 - 439 = 135
135 ÷ 439 = 0.30751708428246016
0.30751708428246016 x 100 = 30.75%