8.5% is the change from 765 to 830
Calculation steps:
[( 830 - 765 ) ÷ 765] x 100 = 8.5%
Formula
Percentage change = [(830 - 765) / 765] x 100
Subtract the new number by the original number
830 - 765 = 65
65 ÷ 765 = 0.08496732026143791
0.08496732026143791 x 100 = 8.5%