35.71% is the change from 504 to 684
Calculation steps:
[( 684 - 504 ) ÷ 504] x 100 = 35.71%
Formula
Percentage change = [(684 - 504) / 504] x 100
Subtract the new number by the original number
684 - 504 = 180
180 ÷ 504 = 0.35714285714285715
0.35714285714285715 x 100 = 35.71%