-97.26% is the change from 329 to 9
Calculation steps:
[( 9 - 329 ) ÷ 329] x 100 = -97.26%
Formula
Percentage change = [(9 - 329) / 329] x 100
Subtract the new number by the original number
9 - 329 = -320
-320 ÷ 329 = -0.9726443768996961
-0.9726443768996961 x 100 = -97.26%