hologic , inc . notes to consolidated financial statements ( continued ) ( in thousands , except per share data ) restructuring accrual as a result of the cytyc merger , the company assumed previous cytyc management approved restructuring plans designed to reduce future operating expenses by consolidating its mountain view , california operations into its existing operations in costa rica and massachusetts as well as restructuring plans relating to cytyc 2019s historical acquisitions completed in march 2007 . in connection with these plans , the company assumed a total liability of approximately $ 4658 . during the twelve months ended september 27 , 2008 , the company did not incur any additional restructuring costs related to retention costs for these employees . as a result of the third wave acquisition , the company assumed previous third wave management approved restructuring plans designed to reduce future operating expenses . in connection with these plans , the company assumed a total liability related to termination benefits of approximately $ 7509 . the company did not incur any additional restructuring costs related to retention costs for these employees from the date of acquisition through september 27 , 2008 . we anticipate that these costs will be paid in full during fiscal 2009 . additionally , the company recorded a liability related to the cytyc merger in accordance with eitf 95-3 as detailed below , primarily related to the termination of certain employees as well as minimum inventory purchase commitments and other contractual obligations for which business activities have been discontinued . during the twelve months ended september 27 , 2008 the company incurred approximately $ 6.4 million of expense related to the resignation of the chairman of the board of directors , which is not included in the table below ( see note 12 ) . changes in the restructuring accrual for the twelve months ended september 27 , 2008 were as follows : twelve months ended september 27 , 2008 termination benefits .

twelve months ended september 27 2008 other: beginning balance: 2014
cytyc balance acquired october 22 2007: 2014
third wave balance acquired july 24 2008: 261
provided for under eitf no . 95-3: 1820
adjustments: -382
payments: -817
ending balance: 882
twelve months ended september 27 2008: beginning balance: 105
cytyc balance acquired october 22 2007: 4658
third wave balance acquired july 24 2008: 7029
provided for under eitf no . 95-3: 1020
adjustments: -270
payments: -11233
ending balance: 1309

as of the dates of acquisition of aeg elektrofotografie gmbh ( 201caeg 201d ) , r2 technology , inc . ( 201cr2 201d ) and suros surgical , inc . ( 201csuros 201d ) ( see note 3 ) , management of the company implemented and finalized plans to involuntarily terminate certain employees of the acquired companies . these plans resulted in a liability for costs associated with an employee severance arrangement of approximately $ 3135 in accordance with eitf issue no . 95-3 , recognition of liabilities in connection with a purchase business combination . as of september 29 , 2007 , all amounts other than $ 105 had been paid . the company had made full payment on this remaining liability as of september 27 , 2008 . advertising costs advertising costs are charged to operations as incurred . the company does not have any direct-response advertising . advertising costs , which include trade shows and conventions , were approximately $ 15281 , $ 6683 and $ 5003 for fiscal 2008 , 2007 and 2006 , respectively , and were included in selling and marketing expense in the consolidated statements of operations. .

Questions:
what was the total of advertising costs in 2007?
and what was that total in 2006?
what was, then, the change over the year?
and how much does this change represent in relation to the total in 2006?

Answers:
6683
5003
1680
33.6%