3.05% is the change from 622 to 641
Calculation steps:
[( 641 - 622 ) ÷ 622] x 100 = 3.05%
Formula
Percentage change = [(641 - 622) / 622] x 100
Subtract the new number by the original number
641 - 622 = 19
19 ÷ 622 = 0.03054662379421222
0.03054662379421222 x 100 = 3.05%