reporting unit 2019s related goodwill assets . in 2013 , we recorded a non-cash goodwill impairment charge of $ 195 million , net of state tax benefits . see 201ccritical accounting policies - goodwill 201d in management 2019s discussion and analysis of financial condition and results of operations and 201cnote 1 2013 significant accounting policies 201d for more information on this impairment charge . changes in u.s . or foreign tax laws , including possibly with retroactive effect , and audits by tax authorities could result in unanticipated increases in our tax expense and affect profitability and cash flows . for example , proposals to lower the u.s . corporate income tax rate would require us to reduce our net deferred tax assets upon enactment of the related tax legislation , with a corresponding material , one-time increase to income tax expense , but our income tax expense and payments would be materially reduced in subsequent years . actual financial results could differ from our judgments and estimates . refer to 201ccritical accounting policies 201d in management 2019s discussion and analysis of financial condition and results of operations , and 201cnote 1 2013 significant accounting policies 201d of our consolidated financial statements for a complete discussion of our significant accounting policies and use of estimates . item 1b . unresolved staff comments . item 2 . properties . at december 31 , 2013 , we owned or leased building space ( including offices , manufacturing plants , warehouses , service centers , laboratories , and other facilities ) at 518 locations primarily in the u.s . additionally , we manage or occupy various u.s . government-owned facilities under lease and other arrangements . at december 31 , 2013 , we had significant operations in the following locations : 2022 aeronautics 2013 palmdale , california ; marietta , georgia ; greenville , south carolina ; fort worth and san antonio , texas ; and montreal , canada . 2022 information systems & global solutions 2013 goodyear , arizona ; sunnyvale , california ; colorado springs and denver , colorado ; gaithersburg and rockville , maryland ; valley forge , pennsylvania ; and houston , texas . 2022 missiles and fire control 2013 camden , arkansas ; orlando , florida ; lexington , kentucky ; and grand prairie , texas . 2022 mission systems and training 2013 orlando , florida ; baltimore , maryland ; moorestown/mt . laurel , new jersey ; owego and syracuse , new york ; akron , ohio ; and manassas , virginia . 2022 space systems 2013 huntsville , alabama ; sunnyvale , california ; denver , colorado ; albuquerque , new mexico ; and newtown , pennsylvania . 2022 corporate activities 2013 lakeland , florida and bethesda , maryland . in november 2013 , we committed to a plan to vacate our leased facilities in goodyear , arizona and akron , ohio , and close our owned facility in newtown , pennsylvania and certain owned buildings at our sunnyvale , california facility . we expect these closures , which include approximately 2.5 million square feet of facility space , will be substantially complete by the middle of 2015 . for information regarding these matters , see 201cnote 2 2013 restructuring charges 201d of our consolidated financial statements . the following is a summary of our square feet of floor space by business segment at december 31 , 2013 , inclusive of the facilities that we plan to vacate as mentioned above ( in millions ) : owned leased u.s . government- owned total .

Table: owned leased u.s . government- owned total aeronautics 5.8 2.7 14.2 22.7 information systems & global solutions 2.5 5.7 2014 8.2 missiles and fire control 4.2 5.1 1.3 10.6 mission systems and training 5.8 5.3 0.4 11.5 space systems 8.5 1.6 7.9 18.0 corporate activities 3.0 0.9 2014 3.9 total 29.8 21.3 23.8 74.9

we believe our facilities are in good condition and adequate for their current use . we may improve , replace , or reduce facilities as considered appropriate to meet the needs of our operations. .

Question: what percentage of total square feet of floor space by business segment at december 31 , 2013 is in aeronautics?
Answer: 30%
Calculation: divide(22.7, 74.9)