the company monitors the financial health and stability of its lenders under the revolving credit and long term debt facilities , however during any period of significant instability in the credit markets lenders could be negatively impacted in their ability to perform under these facilities . in july 2011 , in connection with the company 2019s acquisition of its corporate headquarters , the company assumed a $ 38.6 million nonrecourse loan secured by a mortgage on the acquired property . the acquisition of the company 2019s corporate headquarters was accounted for as a business combination , and the carrying value of the loan secured by the acquired property approximates fair value . the assumed loan had an original term of approximately ten years with a scheduled maturity date of march 1 , 2013 . the loan includes a balloon payment of $ 37.3 million due at maturity , and may not be prepaid . the assumed loan is nonrecourse with the lender 2019s remedies for non-performance limited to action against the acquired property and certain required reserves and a cash collateral account , except for nonrecourse carve outs related to fraud , breaches of certain representations , warranties or covenants , including those related to environmental matters , and other standard carve outs for a loan of this type . the loan requires certain minimum cash flows and financial results from the property , and if those requirements are not met , additional reserves may be required . the assumed loan requires prior approval of the lender for certain matters related to the property , including material leases , changes to property management , transfers of any part of the property and material alterations to the property . the loan has an interest rate of 6.73% ( 6.73 % ) . in connection with the assumed loan , the company incurred and capitalized $ 0.8 million in deferred financing costs . as of december 31 , 2011 , the outstanding balance on the loan was $ 38.2 million . in addition , in connection with the assumed loan for the acquisition of its corporate headquarters , the company was required to set aside amounts in reserve and cash collateral accounts . as of december 31 , 2011 , $ 2.0 million of restricted cash was included in prepaid expenses and other current assets , and the remaining $ 3.0 million of restricted cash was included in other long term assets . interest expense was $ 3.9 million , $ 2.3 million and $ 2.4 million for the years ended december 31 , 2011 , 2010 and 2009 , respectively . interest expense includes the amortization of deferred financing costs and interest expense under the credit and long term debt facilities , as well as the assumed loan discussed above . 8 . commitments and contingencies obligations under operating leases the company leases warehouse space , office facilities , space for its retail stores and certain equipment under non-cancelable operating leases . the leases expire at various dates through 2023 , excluding extensions at the company 2019s option , and include provisions for rental adjustments . the table below includes executed lease agreements for factory house stores that the company did not yet occupy as of december 31 , 2011 and does not include contingent rent the company may incur at its retail stores based on future sales above a specified limit . the following is a schedule of future minimum lease payments for non-cancelable real property operating leases as of december 31 , 2011 : ( in thousands ) operating .

operating: 2012: 22926
2013: 23470
2014: 26041
2015: 24963
2016: 18734
2017 and thereafter: 69044
total future minimum lease payments: 185178

included in selling , general and administrative expense was rent expense of $ 26.7 million , $ 21.3 million and $ 14.1 million for the years ended december 31 , 2011 , 2010 and 2009 , respectively , under non-cancelable .

Questions:
in 2012, what were the future minimum lease payments for non-cancelable real property?
and what is the total of future minimum lease payments?
what percentage, then, does 2012 represent in relation to this total?
and for the two precedent years, what was the change in the rent expense?
what is this change as a percentage of that rent expense in 2010?

Answers:
22926
185178
12.4%
5.4
25.4%