27.39% is the change from 398 to 507
Calculation steps:
[( 507 - 398 ) ÷ 398] x 100 = 27.39%
Formula
Percentage change = [(507 - 398) / 398] x 100
Subtract the new number by the original number
507 - 398 = 109
109 ÷ 398 = 0.27386934673366836
0.27386934673366836 x 100 = 27.39%