1011.11% is the change from 9 to 100
Calculation steps:
[( 100 - 9 ) ÷ 9] x 100 = 1011.11%
Formula
Percentage change = [(100 - 9) / 9] x 100
Subtract the new number by the original number
100 - 9 = 91
91 ÷ 9 = 10.11111111111111
10.11111111111111 x 100 = 1011.11%