9422.22% is the change from 9 to 857
Calculation steps:
[( 857 - 9 ) ÷ 9] x 100 = 9422.22%
Formula
Percentage change = [(857 - 9) / 9] x 100
Subtract the new number by the original number
857 - 9 = 848
848 ÷ 9 = 94.22222222222223
94.22222222222223 x 100 = 9422.22%