0.32% is the change from 620 to 622
Calculation steps:
[( 622 - 620 ) ÷ 620] x 100 = 0.32%
Formula
Percentage change = [(622 - 620) / 620] x 100
Subtract the new number by the original number
622 - 620 = 2
2 ÷ 620 = 0.0032258064516129032
0.0032258064516129032 x 100 = 0.32%