-97.95% is the change from 438 to 9
Calculation steps:
[( 9 - 438 ) ÷ 438] x 100 = -97.95%
Formula
Percentage change = [(9 - 438) / 438] x 100
Subtract the new number by the original number
9 - 438 = -429
-429 ÷ 438 = -0.9794520547945206
-0.9794520547945206 x 100 = -97.95%