31.55% is the change from 504 to 663
Calculation steps:
[( 663 - 504 ) ÷ 504] x 100 = 31.55%
Formula
Percentage change = [(663 - 504) / 504] x 100
Subtract the new number by the original number
663 - 504 = 159
159 ÷ 504 = 0.31547619047619047
0.31547619047619047 x 100 = 31.55%