item 1 . business cna financial corporation 2013 ( continued ) unpredictability in the law , insurance underwriting is expected to continue to be difficult in commercial lines , professional liability and other specialty coverages . the dodd-frank wall street reform and consumer protection act expands the federal presence in insurance oversight and may increase the regulatory requirements to which cna may be subject . the act 2019s requirements include streamlining the state-based regulation of reinsurance and nonadmitted insurance ( property or casualty insurance placed from insurers that are eligible to accept insurance , but are not licensed to write insurance in a particular state ) . the act also establishes a new federal insurance office within the u.s . department of the treasury with powers over all lines of insurance except health insurance , certain long term care insurance and crop insurance , to , among other things , monitor aspects of the insurance industry , identify issues in the regulation of insurers that could contribute to a systemic crisis in the insurance industry or the overall financial system , coordinate federal policy on international insurance matters and preempt state insurance measures under certain circumstances . the act calls for numerous studies and contemplates further regulation . the patient protection and affordable care act and the related amendments in the health care and education reconciliation act may increase cna 2019s operating costs and underwriting losses . this landmark legislation may lead to numerous changes in the health care industry that could create additional operating costs for cna , particularly with respect to workers 2019 compensation and long term care products . these costs might arise through the increased use of health care services by claimants or the increased complexities in health care bills that could require additional levels of review . in addition , due to the expected number of new participants in the health care system and the potential for additional malpractice claims , cna may experience increased underwriting risk in the lines of business that provide management and professional liability insurance to individuals and businesses engaged in the health care industry . the lines of business that provide professional liability insurance to attorneys , accountants and other professionals who advise clients regarding the health care reform legislation may also experience increased underwriting risk due to the complexity of the legislation . properties : the chicago location owned by ccc , a wholly owned subsidiary of cna , houses cna 2019s principal executive offices . cna owns or leases office space in various cities throughout the united states and in other countries . the following table sets forth certain information with respect to cna 2019s principal office locations : location ( square feet ) principal usage 333 s . wabash avenue 763322 principal executive offices of cna chicago , illinois 401 penn street 190677 property and casualty insurance offices reading , pennsylvania 2405 lucien way 116948 property and casualty insurance offices maitland , florida 40 wall street 114096 property and casualty insurance offices new york , new york 1100 ward avenue 104478 property and casualty insurance offices honolulu , hawaii 101 s . phillips avenue 83616 property and casualty insurance offices sioux falls , south dakota 600 n . pearl street 65752 property and casualty insurance offices dallas , texas 1249 s . river road 50366 property and casualty insurance offices cranbury , new jersey 4267 meridian parkway 46903 data center aurora , illinois 675 placentia avenue 46571 property and casualty insurance offices brea , california cna leases its office space described above except for the chicago , illinois building , the reading , pennsylvania building , and the aurora , illinois building , which are owned. .

size ( square feet ): 333 s . wabash avenuechicago illinois: 763322
401 penn streetreading pennsylvania: 190677
2405 lucien waymaitland florida: 116948
40 wall streetnew york new york: 114096
1100 ward avenuehonolulu hawaii: 104478
101 s . phillips avenuesioux falls south dakota: 83616
600 n . pearl streetdallas texas: 65752
1249 s . river roadcranbury new jersey: 50366
4267 meridian parkwayaurora illinois: 46903
675 placentia avenuebrea california: 46571
principal usage: 333 s . wabash avenuechicago illinois: principal executive offices of cna
401 penn streetreading pennsylvania: property and casualty insurance offices
2405 lucien waymaitland florida: property and casualty insurance offices
40 wall streetnew york new york: property and casualty insurance offices
1100 ward avenuehonolulu hawaii: property and casualty insurance offices
101 s . phillips avenuesioux falls south dakota: property and casualty insurance offices
600 n . pearl streetdallas texas: property and casualty insurance offices
1249 s . river roadcranbury new jersey: property and casualty insurance offices
4267 meridian parkwayaurora illinois: data center
675 placentia avenuebrea california: property and casualty insurance offices

item 1 . business cna financial corporation 2013 ( continued ) unpredictability in the law , insurance underwriting is expected to continue to be difficult in commercial lines , professional liability and other specialty coverages . the dodd-frank wall street reform and consumer protection act expands the federal presence in insurance oversight and may increase the regulatory requirements to which cna may be subject . the act 2019s requirements include streamlining the state-based regulation of reinsurance and nonadmitted insurance ( property or casualty insurance placed from insurers that are eligible to accept insurance , but are not licensed to write insurance in a particular state ) . the act also establishes a new federal insurance office within the u.s . department of the treasury with powers over all lines of insurance except health insurance , certain long term care insurance and crop insurance , to , among other things , monitor aspects of the insurance industry , identify issues in the regulation of insurers that could contribute to a systemic crisis in the insurance industry or the overall financial system , coordinate federal policy on international insurance matters and preempt state insurance measures under certain circumstances . the act calls for numerous studies and contemplates further regulation . the patient protection and affordable care act and the related amendments in the health care and education reconciliation act may increase cna 2019s operating costs and underwriting losses . this landmark legislation may lead to numerous changes in the health care industry that could create additional operating costs for cna , particularly with respect to workers 2019 compensation and long term care products . these costs might arise through the increased use of health care services by claimants or the increased complexities in health care bills that could require additional levels of review . in addition , due to the expected number of new participants in the health care system and the potential for additional malpractice claims , cna may experience increased underwriting risk in the lines of business that provide management and professional liability insurance to individuals and businesses engaged in the health care industry . the lines of business that provide professional liability insurance to attorneys , accountants and other professionals who advise clients regarding the health care reform legislation may also experience increased underwriting risk due to the complexity of the legislation . properties : the chicago location owned by ccc , a wholly owned subsidiary of cna , houses cna 2019s principal executive offices . cna owns or leases office space in various cities throughout the united states and in other countries . the following table sets forth certain information with respect to cna 2019s principal office locations : location ( square feet ) principal usage 333 s . wabash avenue 763322 principal executive offices of cna chicago , illinois 401 penn street 190677 property and casualty insurance offices reading , pennsylvania 2405 lucien way 116948 property and casualty insurance offices maitland , florida 40 wall street 114096 property and casualty insurance offices new york , new york 1100 ward avenue 104478 property and casualty insurance offices honolulu , hawaii 101 s . phillips avenue 83616 property and casualty insurance offices sioux falls , south dakota 600 n . pearl street 65752 property and casualty insurance offices dallas , texas 1249 s . river road 50366 property and casualty insurance offices cranbury , new jersey 4267 meridian parkway 46903 data center aurora , illinois 675 placentia avenue 46571 property and casualty insurance offices brea , california cna leases its office space described above except for the chicago , illinois building , the reading , pennsylvania building , and the aurora , illinois building , which are owned. .

Questions:
what is the total size of the data center location in illinois?
what about the size of principal executive offices of cna?
what is the total of these two?
what is the percentage change?

Answers:
46903
763322
809225
5.6%