11.69% is the change from 77 to 86
Calculation steps:
[( 86 - 77 ) ÷ 77] x 100 = 11.69%
Formula
Percentage change = [(86 - 77) / 77] x 100
Subtract the new number by the original number
86 - 77 = 9
9 ÷ 77 = 0.11688311688311688
0.11688311688311688 x 100 = 11.69%