31.71% is the change from 656 to 864
Calculation steps:
[( 864 - 656 ) ÷ 656] x 100 = 31.71%
Formula
Percentage change = [(864 - 656) / 656] x 100
Subtract the new number by the original number
864 - 656 = 208
208 ÷ 656 = 0.3170731707317073
0.3170731707317073 x 100 = 31.71%