-27.58% is the change from 330 to 239
Calculation steps:
[( 239 - 330 ) ÷ 330] x 100 = -27.58%
Formula
Percentage change = [(239 - 330) / 330] x 100
Subtract the new number by the original number
239 - 330 = -91
-91 ÷ 330 = -0.27575757575757576
-0.27575757575757576 x 100 = -27.58%