15.48% is the change from 504 to 582
Calculation steps:
[( 582 - 504 ) ÷ 504] x 100 = 15.48%
Formula
Percentage change = [(582 - 504) / 504] x 100
Subtract the new number by the original number
582 - 504 = 78
78 ÷ 504 = 0.15476190476190477
0.15476190476190477 x 100 = 15.48%