Detailed Instructions: Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.
Problem:Net sales of Finnish Sanoma Learning & Literature , of Finnish media group Sanoma , decreased by 3.6 % in January-June 2009 totalling EUR 162.8 mn , down from EUR 168.8 mn in the corresponding period in 2008 .
Solution:
negative