898.99% is the change from 99 to 989
Calculation steps:
[( 989 - 99 ) ÷ 99] x 100 = 898.99%
Formula
Percentage change = [(989 - 99) / 99] x 100
Subtract the new number by the original number
989 - 99 = 890
890 ÷ 99 = 8.98989898989899
8.98989898989899 x 100 = 898.99%