20.96% is the change from 520 to 629
Calculation steps:
[( 629 - 520 ) ÷ 520] x 100 = 20.96%
Formula
Percentage change = [(629 - 520) / 520] x 100
Subtract the new number by the original number
629 - 520 = 109
109 ÷ 520 = 0.20961538461538462
0.20961538461538462 x 100 = 20.96%