7.05% is the change from 638 to 683
Calculation steps:
[( 683 - 638 ) ÷ 638] x 100 = 7.05%
Formula
Percentage change = [(683 - 638) / 638] x 100
Subtract the new number by the original number
683 - 638 = 45
45 ÷ 638 = 0.07053291536050156
0.07053291536050156 x 100 = 7.05%