0.32% is the change from 619 to 621
Calculation steps:
[( 621 - 619 ) ÷ 619] x 100 = 0.32%
Formula
Percentage change = [(621 - 619) / 619] x 100
Subtract the new number by the original number
621 - 619 = 2
2 ÷ 619 = 0.0032310177705977385
0.0032310177705977385 x 100 = 0.32%