39.22% is the change from 459 to 639
Calculation steps:
[( 639 - 459 ) ÷ 459] x 100 = 39.22%
Formula
Percentage change = [(639 - 459) / 459] x 100
Subtract the new number by the original number
639 - 459 = 180
180 ÷ 459 = 0.39215686274509803
0.39215686274509803 x 100 = 39.22%