2.29% is the change from 656 to 671
Calculation steps:
[( 671 - 656 ) ÷ 656] x 100 = 2.29%
Formula
Percentage change = [(671 - 656) / 656] x 100
Subtract the new number by the original number
671 - 656 = 15
15 ÷ 656 = 0.022865853658536585
0.022865853658536585 x 100 = 2.29%