22.88% is the change from 520 to 639
Calculation steps:
[( 639 - 520 ) ÷ 520] x 100 = 22.88%
Formula
Percentage change = [(639 - 520) / 520] x 100
Subtract the new number by the original number
639 - 520 = 119
119 ÷ 520 = 0.22884615384615384
0.22884615384615384 x 100 = 22.88%