18.18% is the change from 539 to 637
Calculation steps:
[( 637 - 539 ) ÷ 539] x 100 = 18.18%
Formula
Percentage change = [(637 - 539) / 539] x 100
Subtract the new number by the original number
637 - 539 = 98
98 ÷ 539 = 0.18181818181818182
0.18181818181818182 x 100 = 18.18%