23.38% is the change from 539 to 665
Calculation steps:
[( 665 - 539 ) ÷ 539] x 100 = 23.38%
Formula
Percentage change = [(665 - 539) / 539] x 100
Subtract the new number by the original number
665 - 539 = 126
126 ÷ 539 = 0.23376623376623376
0.23376623376623376 x 100 = 23.38%