11.04% is the change from 770 to 855
Calculation steps:
[( 855 - 770 ) ÷ 770] x 100 = 11.04%
Formula
Percentage change = [(855 - 770) / 770] x 100
Subtract the new number by the original number
855 - 770 = 85
85 ÷ 770 = 0.11038961038961038
0.11038961038961038 x 100 = 11.04%