17.07% is the change from 539 to 631
Calculation steps:
[( 631 - 539 ) ÷ 539] x 100 = 17.07%
Formula
Percentage change = [(631 - 539) / 539] x 100
Subtract the new number by the original number
631 - 539 = 92
92 ÷ 539 = 0.17068645640074212
0.17068645640074212 x 100 = 17.07%