item 2 . properties at december 31 , 2017 , we owned or leased building space ( including offices , manufacturing plants , warehouses , service centers , laboratories and other facilities ) at approximately 375 locations primarily in the u.s . additionally , we manage or occupy approximately 15 government-owned facilities under lease and other arrangements . at december 31 , 2017 , we had significant operations in the following locations : 2022 aeronautics - palmdale , california ; marietta , georgia ; greenville , south carolina ; and fort worth , texas . 2022 missiles and fire control - camdenarkansas ; ocala and orlando , florida ; lexington , kentucky ; and grand prairie , texas . 2022 rotary andmission systems - colorado springs , colorado ; shelton and stratford , connecticut ; orlando and jupiter , florida ; moorestown/mt . laurel , new jersey ; owego and syracuse , new york ; manassas , virginia ; and mielec , poland . 2022 space - sunnyvale , california ; denver , colorado ; valley forge , pennsylvania ; and reading , england . 2022 corporate activities - bethesda , maryland . the following is a summary of our square feet of floor space by business segment at december 31 , 2017 ( in millions ) : owned leased government- owned total .

Table:
 | owned | leased | government-owned | total
aeronautics | 5.0 | 2.1 | 14.4 | 21.5
missiles and fire control | 6.3 | 2.8 | 1.8 | 10.9
rotary and mission systems | 11.2 | 6.6 | 0.4 | 18.2
space | 8.6 | 1.9 | 6.7 | 17.2
corporate activities | 2.7 | 0.9 | 2014 | 3.6
total | 33.8 | 14.3 | 23.3 | 71.4
we believe our facilities are in good condition and adequate for their current use.wemay improve , replace or reduce facilities as considered appropriate to meet the needs of our operations .
item 3 .
legal proceedings we are a party to or have property subject to litigation and other proceedings that arise in the ordinary course of our business , including matters arising under provisions relating to the protection of the environment and are subject to contingencies related to certain businesses we previously owned .
these types of matters could result in fines , penalties , compensatory or treble damages or non-monetary sanctions or relief .
we believe the probability is remote that the outcome of each of these matters will have a material adverse effect on the corporation as a whole , notwithstanding that the unfavorable resolution of any matter may have a material effect on our net earnings in any particular interim reporting period .
we cannot predict the outcome of legal or other proceedings with certainty .
these matters include the proceedings summarized in 201cnote 14 2013 legal proceedings , commitments and contingencies 201d included in our notes to consolidated financial statements .
we are subject to federal , state , local and foreign requirements for protection of the environment , including those for discharge ofhazardousmaterials and remediationof contaminated sites.due inpart to thecomplexity andpervasivenessof these requirements , we are a party to or have property subject to various lawsuits , proceedings and remediation obligations .
the extent of our financial exposure cannot in all cases be reasonably estimated at this time .
for information regarding these matters , including current estimates of the amounts that we believe are required for remediation or clean-up to the extent estimable , see 201ccriticalaccounting policies - environmental matters 201d in management 2019s discussion and analysis of financial condition and results of operations and 201cnote 14 2013 legal proceedings , commitments andcontingencies 201d included in ournotes to consolidated financial statements .
as a u.s .
government contractor , we are subject to various audits and investigations by the u.s .
government to determine whetherouroperations arebeingconducted in accordancewith applicable regulatory requirements.u.s.government investigations of us , whether relating to government contracts or conducted for other reasons , could result in administrative , civil , or criminal liabilities , including repayments , fines or penalties being imposed upon us , suspension , proposed debarment , debarment from eligibility for future u.s .
government contracting , or suspension of export privileges .
suspension or debarment could have a material adverse effect on us because of our dependence on contracts with the u.s .
government .
u.s .
government investigations often take years to complete and many result in no adverse action against us .
we also provide products and services to customers outside of the u.s. , which are subject to u.s .
and foreign laws and regulations and foreign procurement policies and practices .
our compliance with local regulations or applicable u.s .
government regulations also may be audited or investigated .
item 4 .
mine safety disclosures not applicable. .

Question: what percentage of square feet of floor space by business segment at december 31 , 2017 are in the aeronautics segment?
Answer: 30%
Calculation: divide(21.5, 71.4)