12.24% is the change from 686 to 770
Calculation steps:
[( 770 - 686 ) ÷ 686] x 100 = 12.24%
Formula
Percentage change = [(770 - 686) / 686] x 100
Subtract the new number by the original number
770 - 686 = 84
84 ÷ 686 = 0.12244897959183673
0.12244897959183673 x 100 = 12.24%