48.26% is the change from 431 to 639
Calculation steps:
[( 639 - 431 ) ÷ 431] x 100 = 48.26%
Formula
Percentage change = [(639 - 431) / 431] x 100
Subtract the new number by the original number
639 - 431 = 208
208 ÷ 431 = 0.48259860788863107
0.48259860788863107 x 100 = 48.26%