10.39% is the change from 77 to 85
Calculation steps:
[( 85 - 77 ) ÷ 77] x 100 = 10.39%
Formula
Percentage change = [(85 - 77) / 77] x 100
Subtract the new number by the original number
85 - 77 = 8
8 ÷ 77 = 0.1038961038961039
0.1038961038961039 x 100 = 10.39%