18.31% is the change from 426 to 504
Calculation steps:
[( 504 - 426 ) ÷ 426] x 100 = 18.31%
Formula
Percentage change = [(504 - 426) / 426] x 100
Subtract the new number by the original number
504 - 426 = 78
78 ÷ 426 = 0.18309859154929578
0.18309859154929578 x 100 = 18.31%