{"pre_text": ["purchase commitments the company has entered into various purchase agreements for minimum amounts of pulpwood processing and energy over periods ranging from one to twenty years at fixed prices .", "total purchase commitments are as follows: ."], "post_text": ["these purchase agreements are not marked to market .", "the company purchased $ 37.3 million , $ 29.4 million , and $ 14.5 million during the years ended december 31 , 2009 , 2008 and 2007 , respectively , under these purchase agreements .", "litigation pca is a party to various legal actions arising in the ordinary course of business .", "these legal actions cover a broad variety of claims spanning our entire business .", "as of the date of this filing , the company believes it is not reasonably possible that the resolution of these legal actions will , individually or in the aggregate , have a material adverse effect on its financial position , results of operations , or cash flows .", "environmental liabilities the potential costs for various environmental matters are uncertain due to such factors as the unknown magnitude of possible cleanup costs , the complexity and evolving nature of governmental laws and regulations and their interpretations , and the timing , varying costs and effectiveness of alternative cleanup technologies .", "from 1994 through 2009 , remediation costs at the company 2019s mills and corrugated plants totaled approximately $ 3.2 million .", "as of december 31 , 2009 , the company maintained an environmental reserve of $ 9.1 million relating to on-site landfills ( see note 13 ) and surface impoundments as well as ongoing and anticipated remedial projects .", "liabilities recorded for environmental contingencies are estimates of the probable costs based upon available information and assumptions .", "because of these uncertainties , pca 2019s estimates may change .", "as of the date of this filing , the company believes that it is not reasonably possible that future environmental expenditures and asset retirement obligations above the $ 9.1 million accrued as of december 31 , 2009 , will have a material impact on its financial condition , results of operations , or cash flows .", "in connection with the sale to pca of its containerboard and corrugated products business , pactiv agreed to retain all liability for all former facilities and all sites associated with pre-closing off-site waste disposal and all environmental liabilities related to a closed landfill located near the company 2019s filer city mill .", "13 .", "asset retirement obligations asset retirement obligations consist primarily of landfill capping and closure and post-closure costs .", "pca is legally required to perform capping and closure and post-closure care on the landfills at each of the company 2019s mills .", "in accordance with asc 410 , 201c asset retirement and environmental obligations , 201d pca recognizes the fair value of these liabilities as an asset retirement obligation for each landfill and capitalizes packaging corporation of america notes to consolidated financial statements ( continued ) december 31 , 2009 ."], "table": [["", "( in thousands )"], ["2010", "$ 6951"], ["2011", "5942"], ["2012", "3659"], ["2013", "1486"], ["2014", "1486"], ["thereafter", "25048"], ["total", "$ 44572"]], "table_ori": [["", "(In thousands)"], ["2010", "$6,951"], ["2011", "5,942"], ["2012", "3,659"], ["2013", "1,486"], ["2014", "1,486"], ["Thereafter", "25,048"], ["Total", "$44,572"]]}

Question: what was the change in millions from 2008 to 2009 under purchase commitments?
Evidence:
text_3: the company purchased $ 37.3 million , $ 29.4 million , and $ 14.5 million during the years ended december 31 , 2009 , 2008 and 2007 , respectively , under these purchase agreements .
Program: subtract(37.3, 29.4)
Answer:
str_answer: 7.9
exe_answer: 7.9