6.81% is the change from 778 to 831
Calculation steps:
[( 831 - 778 ) ÷ 778] x 100 = 6.81%
Formula
Percentage change = [(831 - 778) / 778] x 100
Subtract the new number by the original number
831 - 778 = 53
53 ÷ 778 = 0.06812339331619537
0.06812339331619537 x 100 = 6.81%