7.83% is the change from 779 to 840
Calculation steps:
[( 840 - 779 ) ÷ 779] x 100 = 7.83%
Formula
Percentage change = [(840 - 779) / 779] x 100
Subtract the new number by the original number
840 - 779 = 61
61 ÷ 779 = 0.07830551989730423
0.07830551989730423 x 100 = 7.83%