15.4% is the change from 539 to 622
Calculation steps:
[( 622 - 539 ) ÷ 539] x 100 = 15.4%
Formula
Percentage change = [(622 - 539) / 539] x 100
Subtract the new number by the original number
622 - 539 = 83
83 ÷ 539 = 0.15398886827458255
0.15398886827458255 x 100 = 15.4%