kimco realty corporation and subsidiaries notes to consolidated financial statements , continued investment in retail store leases the company has interests in various retail store leases relating to the anchor store premises in neighborhood and community shopping centers . these premises have been sublet to retailers who lease the stores pursuant to net lease agreements . income from the investment in these retail store leases during the years ended december 31 , 2008 , 2007 and 2006 , was approximately $ 2.7 million , $ 1.2 million and $ 1.3 million , respectively . these amounts represent sublease revenues during the years ended december 31 , 2008 , 2007 and 2006 , of approximately $ 7.1 million , $ 7.7 million and $ 8.2 million , respectively , less related expenses of $ 4.4 million , $ 5.1 million and $ 5.7 million , respectively , and an amount which , in management 2019s estimate , reasonably provides for the recovery of the investment over a period representing the expected remaining term of the retail store leases . the company 2019s future minimum revenues under the terms of all non-cancelable tenant subleases and future minimum obligations through the remaining terms of its retail store leases , assuming no new or renegotiated leases are executed for such premises , for future years are as follows ( in millions ) : 2009 , $ 5.6 and $ 3.8 ; 2010 , $ 5.4 and $ 3.7 ; 2011 , $ 4.5 and $ 3.1 ; 2012 , $ 2.3 and $ 2.1 ; 2013 , $ 1.0 and $ 1.3 and thereafter , $ 1.4 and $ 0.5 , respectively . leveraged lease during june 2002 , the company acquired a 90% ( 90 % ) equity participation interest in an existing leveraged lease of 30 properties . the properties are leased under a long-term bond-type net lease whose primary term expires in 2016 , with the lessee having certain renewal option rights . the company 2019s cash equity investment was approximately $ 4.0 million . this equity investment is reported as a net investment in leveraged lease in accordance with sfas no . 13 , accounting for leases ( as amended ) . from 2002 to 2007 , 18 of these properties were sold , whereby the proceeds from the sales were used to pay down the mortgage debt by approximately $ 31.2 million . as of december 31 , 2008 , the remaining 12 properties were encumbered by third-party non-recourse debt of approximately $ 42.8 million that is scheduled to fully amortize during the primary term of the lease from a portion of the periodic net rents receivable under the net lease . as an equity participant in the leveraged lease , the company has no recourse obligation for principal or interest payments on the debt , which is collateralized by a first mortgage lien on the properties and collateral assignment of the lease . accordingly , this obligation has been offset against the related net rental receivable under the lease . at december 31 , 2008 and 2007 , the company 2019s net investment in the leveraged lease consisted of the following ( in millions ) : .

2008: remaining net rentals: 53.8
estimated unguaranteed residual value: 31.7
non-recourse mortgage debt: -38.5
unearned and deferred income: -43
net investment in leveraged lease: 4
2007: remaining net rentals: 55
estimated unguaranteed residual value: 36
non-recourse mortgage debt: -43.9
unearned and deferred income: -43.3
net investment in leveraged lease: 3.8

9 . mortgages and other financing receivables : the company has various mortgages and other financing receivables which consist of loans acquired and loans originated by the company . for a complete listing of the company 2019s mortgages and other financing receivables at december 31 , 2008 , see financial statement schedule iv included on page 141 of this annual report on form 10-k . reconciliation of mortgage loans and other financing receivables on real estate: .

Questions:
what were the sublease revenues in 2008?
and what were they in 2007?
what was, then, the change over the year?
what were the sublease revenues in 2007?
and how much does that change represent in relation to these 2007 sublease revenues?

Answers:
7.1
7.7
-0.6
7.7
-7.8%