7.98% is the change from 777 to 839
Calculation steps:
[( 839 - 777 ) ÷ 777] x 100 = 7.98%
Formula
Percentage change = [(839 - 777) / 777] x 100
Subtract the new number by the original number
839 - 777 = 62
62 ÷ 777 = 0.07979407979407979
0.07979407979407979 x 100 = 7.98%