7.75% is the change from 864 to 931
Calculation steps:
[( 931 - 864 ) ÷ 864] x 100 = 7.75%
Formula
Percentage change = [(931 - 864) / 864] x 100
Subtract the new number by the original number
931 - 864 = 67
67 ÷ 864 = 0.0775462962962963
0.0775462962962963 x 100 = 7.75%