42.12% is the change from 539 to 766
Calculation steps:
[( 766 - 539 ) ÷ 539] x 100 = 42.12%
Formula
Percentage change = [(766 - 539) / 539] x 100
Subtract the new number by the original number
766 - 539 = 227
227 ÷ 539 = 0.42115027829313545
0.42115027829313545 x 100 = 42.12%