54.76% is the change from 504 to 780
Calculation steps:
[( 780 - 504 ) ÷ 504] x 100 = 54.76%
Formula
Percentage change = [(780 - 504) / 504] x 100
Subtract the new number by the original number
780 - 504 = 276
276 ÷ 504 = 0.5476190476190477
0.5476190476190477 x 100 = 54.76%