680.81% is the change from 99 to 773
Calculation steps:
[( 773 - 99 ) ÷ 99] x 100 = 680.81%
Formula
Percentage change = [(773 - 99) / 99] x 100
Subtract the new number by the original number
773 - 99 = 674
674 ÷ 99 = 6.808080808080808
6.808080808080808 x 100 = 680.81%