48.83% is the change from 428 to 637
Calculation steps:
[( 637 - 428 ) ÷ 428] x 100 = 48.83%
Formula
Percentage change = [(637 - 428) / 428] x 100
Subtract the new number by the original number
637 - 428 = 209
209 ÷ 428 = 0.4883177570093458
0.4883177570093458 x 100 = 48.83%