{"pre_text": ["distribution xpedx , our north american merchant distribution business , distributes products and services to a number of customer markets including : commercial printers with printing papers and graphic pre-press , printing presses and post-press equipment ; building services and away-from-home markets with facility supplies ; manufacturers with packaging supplies and equipment ; and to a growing number of customers , we exclusively provide distribution capabilities including warehousing and delivery services .", "xpedx is the leading wholesale distribution marketer in these customer and product segments in north america , operating 122 warehouse locations and 130 retail stores in the united states , mexico and cana- forest products international paper owns and manages approx- imately 200000 acres of forestlands and develop- ment properties in the united states , mostly in the south .", "our remaining forestlands are managed as a portfolio to optimize the economic value to our shareholders .", "most of our portfolio represents prop- erties that are likely to be sold to investors and other buyers for various purposes .", "specialty businesses and other chemicals : this business was sold in the first quarter of 2007 .", "ilim holding s.a .", "in october 2007 , international paper and ilim holding s.a .", "( ilim ) completed a 50:50 joint venture to operate a pulp and paper business located in russia .", "ilim 2019s facilities include three paper mills located in bratsk , ust-ilimsk , and koryazhma , russia , with combined total pulp and paper capacity of over 2.5 million tons .", "ilim has exclusive harvesting rights on timberland and forest areas exceeding 12.8 million acres ( 5.2 million hectares ) .", "products and brand designations appearing in italics are trademarks of international paper or a related company .", "industry segment results industrial packaging demand for industrial packaging products is closely correlated with non-durable industrial goods pro- duction , as well as with demand for processed foods , poultry , meat and agricultural products .", "in addition to prices and volumes , major factors affecting the profitability of industrial packaging are raw material and energy costs , freight costs , manufacturing effi- ciency and product mix .", "industrial packaging results for 2009 and 2008 include the cbpr business acquired in the 2008 third quarter .", "net sales for 2009 increased 16% ( 16 % ) to $ 8.9 billion compared with $ 7.7 billion in 2008 , and 69% ( 69 % ) compared with $ 5.2 billion in 2007 .", "operating profits were 95% ( 95 % ) higher in 2009 than in 2008 and more than double 2007 levels .", "benefits from higher total year-over-year shipments , including the impact of the cbpr business , ( $ 11 million ) , favorable operating costs ( $ 294 million ) , and lower raw material and freight costs ( $ 295 million ) were parti- ally offset by the effects of lower price realizations ( $ 243 million ) , higher corporate overhead allocations ( $ 85 million ) , incremental integration costs asso- ciated with the acquisition of the cbpr business ( $ 3 million ) and higher other costs ( $ 7 million ) .", "additionally , operating profits in 2009 included a gain of $ 849 million relating to alternative fuel mix- ture credits , u.s .", "plant closure costs of $ 653 million , and costs associated with the shutdown of the eti- enne mill in france of $ 87 million .", "industrial packaging in millions 2009 2008 2007 ."], "post_text": ["north american industrial packaging results include the net sales and operating profits of the cbpr business from the august 4 , 2008 acquis- ition date .", "net sales were $ 7.6 billion in 2009 com- pared with $ 6.2 billion in 2008 and $ 3.9 billion in 2007 .", "operating profits in 2009 were $ 791 million ( $ 682 million excluding alternative fuel mixture cred- its , mill closure costs and costs associated with the cbpr integration ) compared with $ 322 million ( $ 414 million excluding charges related to the write-up of cbpr inventory to fair value , cbpr integration costs and other facility closure costs ) in 2008 and $ 305 million in 2007 .", "excluding the effect of the cbpr acquisition , con- tainerboard and box shipments were lower in 2009 compared with 2008 reflecting weaker customer demand .", "average sales price realizations were sig- nificantly lower for both containerboard and boxes due to weaker world-wide economic conditions .", "however , average sales margins for boxes ."], "table": [["in millions", "2009", "2008", "2007"], ["sales", "$ 8890", "$ 7690", "$ 5245"], ["operating profit", "761", "390", "374"]], "table_ori": [["<i>In millions</i>", "2009", "2008", "2007"], ["Sales", "$8,890", "$7,690", "$5,245"], ["Operating Profit", "761", "390", "374"]]}

Question: what was the increase in industrial packaging sales between 2007 and 2008?
Evidence:
table_1: in millions the sales of 2009 is $ 8890 ; the sales of 2008 is $ 7690 ; the sales of 2007 is $ 5245 ;
text_19: industrial packaging in millions 2009 2008 2007 .
Program: subtract(7690, 5245)
Answer:
str_answer: 2445
exe_answer: 2445