5.49% is the change from 638 to 673
Calculation steps:
[( 673 - 638 ) ÷ 638] x 100 = 5.49%
Formula
Percentage change = [(673 - 638) / 638] x 100
Subtract the new number by the original number
673 - 638 = 35
35 ÷ 638 = 0.054858934169279
0.054858934169279 x 100 = 5.49%