11.92% is the change from 688 to 770
Calculation steps:
[( 770 - 688 ) ÷ 688] x 100 = 11.92%
Formula
Percentage change = [(770 - 688) / 688] x 100
Subtract the new number by the original number
770 - 688 = 82
82 ÷ 688 = 0.11918604651162791
0.11918604651162791 x 100 = 11.92%