11.43% is the change from 770 to 858
Calculation steps:
[( 858 - 770 ) ÷ 770] x 100 = 11.43%
Formula
Percentage change = [(858 - 770) / 770] x 100
Subtract the new number by the original number
858 - 770 = 88
88 ÷ 770 = 0.11428571428571428
0.11428571428571428 x 100 = 11.43%