3.49% is the change from 601 to 622
Calculation steps:
[( 622 - 601 ) ÷ 601] x 100 = 3.49%
Formula
Percentage change = [(622 - 601) / 601] x 100
Subtract the new number by the original number
622 - 601 = 21
21 ÷ 601 = 0.03494176372712146
0.03494176372712146 x 100 = 3.49%