2.69% is the change from 631 to 648
Calculation steps:
[( 648 - 631 ) ÷ 631] x 100 = 2.69%
Formula
Percentage change = [(648 - 631) / 631] x 100
Subtract the new number by the original number
648 - 631 = 17
17 ÷ 631 = 0.02694136291600634
0.02694136291600634 x 100 = 2.69%