880.2% is the change from 101 to 990
Calculation steps:
[( 990 - 101 ) ÷ 101] x 100 = 880.2%
Formula
Percentage change = [(990 - 101) / 101] x 100
Subtract the new number by the original number
990 - 101 = 889
889 ÷ 101 = 8.801980198019802
8.801980198019802 x 100 = 880.2%