0.32% is the change from 622 to 624
Calculation steps:
[( 624 - 622 ) ÷ 622] x 100 = 0.32%
Formula
Percentage change = [(624 - 622) / 622] x 100
Subtract the new number by the original number
624 - 622 = 2
2 ÷ 622 = 0.003215434083601286
0.003215434083601286 x 100 = 0.32%