future minimum operating lease payments for leases with remaining terms greater than one year for each of the years in the five years ending december 31 , 2015 , and thereafter in the aggregate , are as follows ( in millions ) : .

$ 65.1: 2012: 47.6
2013: 35.7
2014: 27.8
2015: 24.3
thereafter: 78.1
total: 278.6

in addition , the company has operating lease commitments relating to office equipment and computer hardware with annual lease payments of approximately $ 16.3 million per year which renew on a short-term basis . rent expense incurred under all operating leases during the years ended december 31 , 2010 , 2009 and 2008 was $ 116.1 million , $ 100.2 million and $ 117.0 million , respectively . included in discontinued operations in the consolidated statements of earnings was rent expense of $ 2.0 million , $ 1.8 million and $ 17.0 million for the years ended december 31 , 2010 , 2009 and 2008 , respectively . data processing and maintenance services agreements . the company has agreements with various vendors , which expire between 2011 and 2017 , for portions of its computer data processing operations and related functions . the company 2019s estimated aggregate contractual obligation remaining under these agreements was approximately $ 554.3 million as of december 31 , 2010 . however , this amount could be more or less depending on various factors such as the inflation rate , foreign exchange rates , the introduction of significant new technologies , or changes in the company 2019s data processing needs . ( 16 ) employee benefit plans stock purchase plan fis employees participate in an employee stock purchase plan ( espp ) . eligible employees may voluntarily purchase , at current market prices , shares of fis 2019 common stock through payroll deductions . pursuant to the espp , employees may contribute an amount between 3% ( 3 % ) and 15% ( 15 % ) of their base salary and certain commissions . shares purchased are allocated to employees based upon their contributions . the company contributes varying matching amounts as specified in the espp . the company recorded an expense of $ 14.3 million , $ 12.4 million and $ 14.3 million , respectively , for the years ended december 31 , 2010 , 2009 and 2008 , relating to the participation of fis employees in the espp . included in discontinued operations in the consolidated statements of earnings was expense of $ 0.1 million and $ 3.0 million for the years ended december 31 , 2009 and 2008 , respectively . 401 ( k ) profit sharing plan the company 2019s employees are covered by a qualified 401 ( k ) plan . eligible employees may contribute up to 40% ( 40 % ) of their pretax annual compensation , up to the amount allowed pursuant to the internal revenue code . the company generally matches 50% ( 50 % ) of each dollar of employee contribution up to 6% ( 6 % ) of the employee 2019s total eligible compensation . the company recorded expense of $ 23.1 million , $ 16.6 million and $ 18.5 million , respectively , for the years ended december 31 , 2010 , 2009 and 2008 , relating to the participation of fis employees in the 401 ( k ) plan . included in discontinued operations in the consolidated statements of earnings was expense of $ 0.1 million and $ 3.9 million for the years ended december 31 , 2009 and 2008 , respectively . fidelity national information services , inc . and subsidiaries notes to consolidated financial statements 2014 ( continued ) %%transmsg*** transmitting job : g26369 pcn : 083000000 ***%%pcmsg|83 |00006|yes|no|03/28/2011 17:32|0|0|page is valid , no graphics -- color : n| .

Questions:
what was the net rent expense in 2010?
and what was it in 2009?
what was, then, the change in net rent expense over the year?
and how much does this change represent in relation to the 2009 net rent expense?

Answers:
116.1
100.2
15.9
15.9%