105.81% is the change from 310 to 638
Calculation steps:
[( 638 - 310 ) ÷ 310] x 100 = 105.81%
Formula
Percentage change = [(638 - 310) / 310] x 100
Subtract the new number by the original number
638 - 310 = 328
328 ÷ 310 = 1.0580645161290323
1.0580645161290323 x 100 = 105.81%