7.4% is the change from 622 to 668
Calculation steps:
[( 668 - 622 ) ÷ 622] x 100 = 7.4%
Formula
Percentage change = [(668 - 622) / 622] x 100
Subtract the new number by the original number
668 - 622 = 46
46 ÷ 622 = 0.07395498392282958
0.07395498392282958 x 100 = 7.4%