964.1% is the change from 78 to 830
Calculation steps:
[( 830 - 78 ) ÷ 78] x 100 = 964.1%
Formula
Percentage change = [(830 - 78) / 78] x 100
Subtract the new number by the original number
830 - 78 = 752
752 ÷ 78 = 9.64102564102564
9.64102564102564 x 100 = 964.1%