Unilever sales -after excluding acquisitions, disposals and currency effects- were up 7.8% in the 3rd quarter of 2011. Sales in emerging markets were up 13%, and now provide over half of Unilever's business. Unilever achieved these gains through price increases of 5.8% and volume up by 19%. Unilever faces rising costs for oil, palm oil, petrochemicals and plastics. The increase in commoditiy costs added 2.5 billion euros to costs compared to the prior year. To cope with rising costs Unilever is improving packaging, logistics, sourcing and reducing purchasing costs. Unilever's strategy is to selectively increase prices to keep margins from falling.