789.9% is the change from 99 to 881
Calculation steps:
[( 881 - 99 ) ÷ 99] x 100 = 789.9%
Formula
Percentage change = [(881 - 99) / 99] x 100
Subtract the new number by the original number
881 - 99 = 782
782 ÷ 99 = 7.898989898989899
7.898989898989899 x 100 = 789.9%