755.67% is the change from 97 to 830
Calculation steps:
[( 830 - 97 ) ÷ 97] x 100 = 755.67%
Formula
Percentage change = [(830 - 97) / 97] x 100
Subtract the new number by the original number
830 - 97 = 733
733 ÷ 97 = 7.556701030927835
7.556701030927835 x 100 = 755.67%