-97.34% is the change from 338 to 9
Calculation steps:
[( 9 - 338 ) ÷ 338] x 100 = -97.34%
Formula
Percentage change = [(9 - 338) / 338] x 100
Subtract the new number by the original number
9 - 338 = -329
-329 ÷ 338 = -0.9733727810650887
-0.9733727810650887 x 100 = -97.34%