2.47% is the change from 649 to 665
Calculation steps:
[( 665 - 649 ) ÷ 649] x 100 = 2.47%
Formula
Percentage change = [(665 - 649) / 649] x 100
Subtract the new number by the original number
665 - 649 = 16
16 ÷ 649 = 0.02465331278890601
0.02465331278890601 x 100 = 2.47%