900% is the change from 88 to 880
Calculation steps:
[( 880 - 88 ) ÷ 88] x 100 = 900%
Formula
Percentage change = [(880 - 88) / 88] x 100
Subtract the new number by the original number
880 - 88 = 792
792 ÷ 88 = 9
9 x 100 = 900%
Example