-97.04% is the change from 304 to 9
Calculation steps:
[( 9 - 304 ) ÷ 304] x 100 = -97.04%
Formula
Percentage change = [(9 - 304) / 304] x 100
Subtract the new number by the original number
9 - 304 = -295
-295 ÷ 304 = -0.9703947368421053
-0.9703947368421053 x 100 = -97.04%