0.81% is the change from 616 to 621
Calculation steps:
[( 621 - 616 ) ÷ 616] x 100 = 0.81%
Formula
Percentage change = [(621 - 616) / 616] x 100
Subtract the new number by the original number
621 - 616 = 5
5 ÷ 616 = 0.008116883116883116
0.008116883116883116 x 100 = 0.81%