-8.18% is the change from 330 to 303
Calculation steps:
[( 303 - 330 ) ÷ 330] x 100 = -8.18%
Formula
Percentage change = [(303 - 330) / 330] x 100
Subtract the new number by the original number
303 - 330 = -27
-27 ÷ 330 = -0.08181818181818182
-0.08181818181818182 x 100 = -8.18%