Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.

Finnish investment group Norvestia Oyj said its net profit fell to 23.5 mln euro $ 30.6 mln in 2006 from 33.5 mln euro $ 43.6 mln in 2005 .
negative