1822.22% is the change from 9 to 173
Calculation steps:
[( 173 - 9 ) ÷ 9] x 100 = 1822.22%
Formula
Percentage change = [(173 - 9) / 9] x 100
Subtract the new number by the original number
173 - 9 = 164
164 ÷ 9 = 18.22222222222222
18.22222222222222 x 100 = 1822.22%