8.97% is the change from 78 to 85
Calculation steps:
[( 85 - 78 ) ÷ 78] x 100 = 8.97%
Formula
Percentage change = [(85 - 78) / 78] x 100
Subtract the new number by the original number
85 - 78 = 7
7 ÷ 78 = 0.08974358974358974
0.08974358974358974 x 100 = 8.97%