29.41% is the change from 425 to 550
Calculation steps:
[( 550 - 425 ) ÷ 425] x 100 = 29.41%
Formula
Percentage change = [(550 - 425) / 425] x 100
Subtract the new number by the original number
550 - 425 = 125
125 ÷ 425 = 0.29411764705882354
0.29411764705882354 x 100 = 29.41%