-97.03% is the change from 303 to 9
Calculation steps:
[( 9 - 303 ) ÷ 303] x 100 = -97.03%
Formula
Percentage change = [(9 - 303) / 303] x 100
Subtract the new number by the original number
9 - 303 = -294
-294 ÷ 303 = -0.9702970297029703
-0.9702970297029703 x 100 = -97.03%