30.5% is the change from 423 to 552
Calculation steps:
[( 552 - 423 ) ÷ 423] x 100 = 30.5%
Formula
Percentage change = [(552 - 423) / 423] x 100
Subtract the new number by the original number
552 - 423 = 129
129 ÷ 423 = 0.3049645390070922
0.3049645390070922 x 100 = 30.5%