the impairment tests performed for intangible assets as of july 31 , 2013 , 2012 and 2011 indicated no impairment charges were required . estimated amortization expense for finite-lived intangible assets for each of the five succeeding years is as follows : ( in millions ) .

amount: 2014: 156
2015: 126
2016: 91
2017: 74
2018: 24

indefinite-lived acquired management contracts in july 2013 , in connection with the credit suisse etf transaction , the company acquired $ 231 million of indefinite-lived management contracts . in march 2012 , in connection with the claymore transaction , the company acquired $ 163 million of indefinite-lived etp management contracts . finite-lived acquired management contracts in october 2013 , in connection with the mgpa transaction , the company acquired $ 29 million of finite-lived management contracts with a weighted-average estimated useful life of approximately eight years . in september 2012 , in connection with the srpep transaction , the company acquired $ 40 million of finite- lived management contracts with a weighted-average estimated useful life of approximately 10 years . 11 . other assets at march 31 , 2013 , blackrock held an approximately one- third economic equity interest in private national mortgage acceptance company , llc ( 201cpnmac 201d ) , which is accounted for as an equity method investment and is included in other assets on the consolidated statements of financial condition . on may 8 , 2013 , pennymac became the sole managing member of pnmac in connection with an initial public offering of pennymac ( the 201cpennymac ipo 201d ) . as a result of the pennymac ipo , blackrock recorded a noncash , nonoperating pre-tax gain of $ 39 million related to the carrying value of its equity method investment . subsequent to the pennymac ipo , the company contributed 6.1 million units of its investment to a new donor advised fund ( the 201ccharitable contribution 201d ) . the fair value of the charitable contribution was $ 124 million and is included in general and administration expenses on the consolidated statements of income . in connection with the charitable contribution , the company also recorded a noncash , nonoperating pre-tax gain of $ 80 million related to the contributed investment and a tax benefit of approximately $ 48 million . the carrying value and fair value of the company 2019s remaining interest ( approximately 20% ( 20 % ) or 16 million shares and units ) was approximately $ 127 million and $ 273 million , respectively , at december 31 , 2013 . the fair value of the company 2019s interest reflected the pennymac stock price at december 31 , 2013 ( level 1 input ) . 12 . borrowings short-term borrowings the carrying value of short-term borrowings at december 31 , 2012 included $ 100 million under the 2012 revolving credit facility . 2013 revolving credit facility . in march 2011 , the company entered into a five-year $ 3.5 billion unsecured revolving credit facility ( the 201c2011 credit facility 201d ) . in march 2012 , the 2011 credit facility was amended to extend the maturity date by one year to march 2017 and in april 2012 the amount of the aggregate commitment was increased to $ 3.785 billion ( the 201c2012 credit facility 201d ) . in march 2013 , the company 2019s credit facility was amended to extend the maturity date by one year to march 2018 and the amount of the aggregate commitment was increased to $ 3.990 billion ( the 201c2013 credit facility 201d ) . the 2013 credit facility permits the company to request up to an additional $ 1.0 billion of borrowing capacity , subject to lender credit approval , increasing the overall size of the 2013 credit facility to an aggregate principal amount not to exceed $ 4.990 billion . interest on borrowings outstanding accrues at a rate based on the applicable london interbank offered rate plus a spread . the 2013 credit facility requires the company not to exceed a maximum leverage ratio ( ratio of net debt to earnings before interest , taxes , depreciation and amortization , where net debt equals total debt less unrestricted cash ) of 3 to 1 , which was satisfied with a ratio of less than 1 to 1 at december 31 , 2013 . the 2013 credit facility provides back- up liquidity , funds ongoing working capital for general corporate purposes and funds various investment opportunities . at december 31 , 2013 , the company had no amount outstanding under the 2013 credit facility . commercial paper program . on october 14 , 2009 , blackrock established a commercial paper program ( the 201ccp program 201d ) under which the company could issue unsecured commercial paper notes ( the 201ccp notes 201d ) on a private placement basis up to a maximum aggregate amount outstanding at any time of $ 3.0 billion . on may 13 , 2011 , blackrock increased the maximum aggregate amount that may be borrowed under the cp program to $ 3.5 billion . on may 17 , 2012 , blackrock increased the maximum aggregate amount to $ 3.785 billion . in april 2013 , blackrock increased the maximum aggregate amount for which the company could issue unsecured cp notes on a private-placement basis up to a maximum aggregate amount outstanding at any time of $ 3.990 billion . the commercial paper program is currently supported by the 2013 credit facility . at december 31 , 2013 and 2012 , blackrock had no cp notes outstanding. .

Questions:
what is the net change in the maximum aggregate amount that may be borrowed under the cp program from 2009 to 2011?
what was the change over the 2009 value?

Answers:
0.5
16.7%