2.15% is the change from 651 to 665
Calculation steps:
[( 665 - 651 ) ÷ 651] x 100 = 2.15%
Formula
Percentage change = [(665 - 651) / 651] x 100
Subtract the new number by the original number
665 - 651 = 14
14 ÷ 651 = 0.021505376344086023
0.021505376344086023 x 100 = 2.15%