15.49% is the change from 523 to 604
Calculation steps:
[( 604 - 523 ) ÷ 523] x 100 = 15.49%
Formula
Percentage change = [(604 - 523) / 523] x 100
Subtract the new number by the original number
604 - 523 = 81
81 ÷ 523 = 0.15487571701720843
0.15487571701720843 x 100 = 15.49%