13.1% is the change from 687 to 777
Calculation steps:
[( 777 - 687 ) ÷ 687] x 100 = 13.1%
Formula
Percentage change = [(777 - 687) / 687] x 100
Subtract the new number by the original number
777 - 687 = 90
90 ÷ 687 = 0.13100436681222707
0.13100436681222707 x 100 = 13.1%