-88.18% is the change from 330 to 39
Calculation steps:
[( 39 - 330 ) ÷ 330] x 100 = -88.18%
Formula
Percentage change = [(39 - 330) / 330] x 100
Subtract the new number by the original number
39 - 330 = -291
-291 ÷ 330 = -0.8818181818181818
-0.8818181818181818 x 100 = -88.18%