6.68% is the change from 778 to 830
Calculation steps:
[( 830 - 778 ) ÷ 778] x 100 = 6.68%
Formula
Percentage change = [(830 - 778) / 778] x 100
Subtract the new number by the original number
830 - 778 = 52
52 ÷ 778 = 0.06683804627249357
0.06683804627249357 x 100 = 6.68%