-39.39% is the change from 330 to 200
Calculation steps:
[( 200 - 330 ) ÷ 330] x 100 = -39.39%
Formula
Percentage change = [(200 - 330) / 330] x 100
Subtract the new number by the original number
200 - 330 = -130
-130 ÷ 330 = -0.3939393939393939
-0.3939393939393939 x 100 = -39.39%