28.57% is the change from 672 to 864
Calculation steps:
[( 864 - 672 ) ÷ 672] x 100 = 28.57%
Formula
Percentage change = [(864 - 672) / 672] x 100
Subtract the new number by the original number
864 - 672 = 192
192 ÷ 672 = 0.2857142857142857
0.2857142857142857 x 100 = 28.57%