8.21% is the change from 767 to 830
Calculation steps:
[( 830 - 767 ) ÷ 767] x 100 = 8.21%
Formula
Percentage change = [(830 - 767) / 767] x 100
Subtract the new number by the original number
830 - 767 = 63
63 ÷ 767 = 0.08213820078226858
0.08213820078226858 x 100 = 8.21%