-97.63% is the change from 380 to 9
Calculation steps:
[( 9 - 380 ) ÷ 380] x 100 = -97.63%
Formula
Percentage change = [(9 - 380) / 380] x 100
Subtract the new number by the original number
9 - 380 = -371
-371 ÷ 380 = -0.9763157894736842
-0.9763157894736842 x 100 = -97.63%