6.2% is the change from 629 to 668
Calculation steps:
[( 668 - 629 ) ÷ 629] x 100 = 6.2%
Formula
Percentage change = [(668 - 629) / 629] x 100
Subtract the new number by the original number
668 - 629 = 39
39 ÷ 629 = 0.06200317965023847
0.06200317965023847 x 100 = 6.2%