3.08% is the change from 649 to 669
Calculation steps:
[( 669 - 649 ) ÷ 649] x 100 = 3.08%
Formula
Percentage change = [(669 - 649) / 649] x 100
Subtract the new number by the original number
669 - 649 = 20
20 ÷ 649 = 0.030816640986132512
0.030816640986132512 x 100 = 3.08%