52.69% is the change from 539 to 823
Calculation steps:
[( 823 - 539 ) ÷ 539] x 100 = 52.69%
Formula
Percentage change = [(823 - 539) / 539] x 100
Subtract the new number by the original number
823 - 539 = 284
284 ÷ 539 = 0.5269016697588126
0.5269016697588126 x 100 = 52.69%