42.49% is the change from 539 to 768
Calculation steps:
[( 768 - 539 ) ÷ 539] x 100 = 42.49%
Formula
Percentage change = [(768 - 539) / 539] x 100
Subtract the new number by the original number
768 - 539 = 229
229 ÷ 539 = 0.424860853432282
0.424860853432282 x 100 = 42.49%