The bar graph show data about the profit of AP company in 2009 from Jan. to Dec. Profit started at 16% in Jan. and Feb. Then it steadily decrease till May. Fortuntely, there wad a production cost is low;it was a steafy rise to 9% till Jul. and remain unchanged till Aug. In Sep. it dramaticlly jumped to 15% . After then,our profit dramaticlly dropped to 15% in Oct. However,it steady rise to 14%