hologic , inc . notes to consolidated financial statements ( continued ) ( in thousands , except per share data ) acquisition of r2 technology , inc . on july 13 , 2006 , the company completed the acquisition of r2 technology , inc . ( 201cr2 201d ) pursuant to an agreement and plan of merger dated april 24 , 2006 . the results of operations for r2 have been included in the company 2019s consolidated financial statements from the date of acquisition as part of its mammography/breast care business segment . r2 , previously located in santa clara , california , develops and sells computer-aided detection technology and products ( 201ccad 201d ) , an innovative technology that assists radiologists in the early detection of breast cancer . the aggregate purchase price for r2 of approximately $ 220600 consisted of approximately 8800 shares of hologic common stock valued at $ 205500 , cash paid of $ 6900 , debt assumed of $ 5700 and approximately $ 2500 for acquisition related fees and expenses . the company determined the fair value of the shares issued in connection with the acquisition in accordance with eitf issue no . 99-12 , determination of the measurement date for the market price of acquirer securities issued in a purchase business combination . the components and allocation of the purchase price , consists of the following approximate amounts: .

Table: net tangible assets acquired as of july 13 2006 $ 1200 in-process research and development 10200 developed technology and know-how 39500 customer relationship 15700 trade name 3300 order backlog 800 deferred income taxes 6700 goodwill 143200 final purchase price $ 220600

the company finalized and completed a plan to restructure certain of r2 2019s historical activities . as of the acquisition date the company recorded a liability of approximately $ 798 in accordance with eitf issue no . 95-3 , recognition of liabilities in connection with a purchase business combination , related to the termination of certain employees and loss related to the abandonment of certain lease space under this plan . all amounts under this plan have been paid as of september 29 , 2007 . the company reduced goodwill related to the r2 acquisition in the amount of approximately $ 2300 and $ 400 during the years ended september 27 , 2008 and september 29 , 2007 , respectively . the reduction in 2007 was primarily related to a change in the preliminary valuation of certain assets and liabilities acquired based on information received during the year . the decrease in goodwill in 2008 was related to the reduction of an income tax liability . the final purchase price allocations were completed and the adjustments did not have a material impact on the company 2019s financial position or results of operation . as part of the purchase price allocation , all intangible assets that were a part of the acquisition were identified and valued . it was determined that only customer relationship , trade name , developed technology and know how and in-process research and development had separately identifiable values . customer relationship represents r2 2019s strong active customer base , dominant market position and strong partnership with several large companies . trade name represents the r2 product names that the company intends to continue to use . order backlog consists of customer orders for which revenue has not yet been recognized . developed technology and know how represents currently marketable purchased products that the company continues to resell as well as utilize to enhance and incorporate into the company 2019s existing products . the estimated $ 10200 of purchase price allocated to in-process research and development projects primarily related to r2 2019s digital cad products . the projects added direct digital algorithm capabilities as well as .

Question: what potion of the r2 acquisition is paid in cash?
Answer: 3.1%
Calculation: divide(6900, 220600)