28.38% is the change from 673 to 864
Calculation steps:
[( 864 - 673 ) ÷ 673] x 100 = 28.38%
Formula
Percentage change = [(864 - 673) / 673] x 100
Subtract the new number by the original number
864 - 673 = 191
191 ÷ 673 = 0.2838038632986627
0.2838038632986627 x 100 = 28.38%