3.54% is the change from 622 to 644
Calculation steps:
[( 644 - 622 ) ÷ 622] x 100 = 3.54%
Formula
Percentage change = [(644 - 622) / 622] x 100
Subtract the new number by the original number
644 - 622 = 22
22 ÷ 622 = 0.03536977491961415
0.03536977491961415 x 100 = 3.54%