-97.3% is the change from 333 to 9
Calculation steps:
[( 9 - 333 ) ÷ 333] x 100 = -97.3%
Formula
Percentage change = [(9 - 333) / 333] x 100
Subtract the new number by the original number
9 - 333 = -324
-324 ÷ 333 = -0.972972972972973
-0.972972972972973 x 100 = -97.3%