2.91% is the change from 619 to 637
Calculation steps:
[( 637 - 619 ) ÷ 619] x 100 = 2.91%
Formula
Percentage change = [(637 - 619) / 619] x 100
Subtract the new number by the original number
637 - 619 = 18
18 ÷ 619 = 0.029079159935379646
0.029079159935379646 x 100 = 2.91%