8.68% is the change from 864 to 939
Calculation steps:
[( 939 - 864 ) ÷ 864] x 100 = 8.68%
Formula
Percentage change = [(939 - 864) / 864] x 100
Subtract the new number by the original number
939 - 864 = 75
75 ÷ 864 = 0.08680555555555555
0.08680555555555555 x 100 = 8.68%