3.41% is the change from 616 to 637
Calculation steps:
[( 637 - 616 ) ÷ 616] x 100 = 3.41%
Formula
Percentage change = [(637 - 616) / 616] x 100
Subtract the new number by the original number
637 - 616 = 21
21 ÷ 616 = 0.03409090909090909
0.03409090909090909 x 100 = 3.41%