-7.88% is the change from 330 to 304
Calculation steps:
[( 304 - 330 ) ÷ 330] x 100 = -7.88%
Formula
Percentage change = [(304 - 330) / 330] x 100
Subtract the new number by the original number
304 - 330 = -26
-26 ÷ 330 = -0.07878787878787878
-0.07878787878787878 x 100 = -7.88%