-9.39% is the change from 330 to 299
Calculation steps:
[( 299 - 330 ) ÷ 330] x 100 = -9.39%
Formula
Percentage change = [(299 - 330) / 330] x 100
Subtract the new number by the original number
299 - 330 = -31
-31 ÷ 330 = -0.09393939393939393
-0.09393939393939393 x 100 = -9.39%