2.34% is the change from 428 to 438
Calculation steps:
[( 438 - 428 ) ÷ 428] x 100 = 2.34%
Formula
Percentage change = [(438 - 428) / 428] x 100
Subtract the new number by the original number
438 - 428 = 10
10 ÷ 428 = 0.02336448598130841
0.02336448598130841 x 100 = 2.34%