2.77% is the change from 649 to 667
Calculation steps:
[( 667 - 649 ) ÷ 649] x 100 = 2.77%
Formula
Percentage change = [(667 - 649) / 649] x 100
Subtract the new number by the original number
667 - 649 = 18
18 ÷ 649 = 0.02773497688751926
0.02773497688751926 x 100 = 2.77%