9111.11% is the change from 9 to 829
Calculation steps:
[( 829 - 9 ) ÷ 9] x 100 = 9111.11%
Formula
Percentage change = [(829 - 9) / 9] x 100
Subtract the new number by the original number
829 - 9 = 820
820 ÷ 9 = 91.11111111111111
91.11111111111111 x 100 = 9111.11%