22.78% is the change from 439 to 539
Calculation steps:
[( 539 - 439 ) ÷ 439] x 100 = 22.78%
Formula
Percentage change = [(539 - 439) / 439] x 100
Subtract the new number by the original number
539 - 439 = 100
100 ÷ 439 = 0.22779043280182232
0.22779043280182232 x 100 = 22.78%