visa inc .
notes to consolidated financial statements 2014 ( continued ) september 30 , 2013 in july 2013 , the company 2019s board of directors authorized a $ 1.5 billion share repurchase program to be in effect through july 2014 .
as of september 30 , 2013 , the program had remaining authorized funds of $ 251 million .
all share repurchase programs authorized prior to july 2013 have been completed .
in october 2013 , the company 2019s board of directors authorized a new $ 5.0 billion share repurchase program .
under the terms of the retrospective responsibility plan , when the company makes a deposit into the litigation escrow account , the shares of class b common stock are subject to dilution through an adjustment to the conversion rate of the shares of class b common stock to shares of class a common stock .
these deposits have the same economic effect on earnings per share as repurchasing the company 2019s class a common stock , because they reduce the class b conversion rate and consequently the as-converted class a common stock share count .
the following table presents as-converted class b common stock after deposits into the litigation escrow account in fiscal 2012 .
there were no deposits into the litigation escrow account in fiscal 2013. .

Fiscal 2012
(in millions, except per share and conversion rate data)
July 2012
December 2011
Deposits under the retrospective responsibility plan
$150
$1,565
Effective price per share<sup>(1)</sup>
$125.50
$101.75
Reduction in equivalent number of shares of class A common stock
1
15
Conversion rate of class B common stock to class A common stock after deposits
0.4206
0.4254
As-converted class B common stock after deposits
103
104

( 1 ) effective price per share calculated using the volume-weighted average price of the company 2019s class a common stock over a pricing period in accordance with the company 2019s current certificate of incorporation .
class b common stock .
the class b common stock is not convertible or transferable until the date on which all of the covered litigation has been finally resolved .
this transfer restriction is subject to limited exceptions , including transfers to other holders of class b common stock .
after termination of the restrictions , the class b common stock will be convertible into class a common stock if transferred to a person that was not a visa member ( as defined in the current certificate of incorporation ) or similar person or an affiliate of a visa member or similar person .
upon such transfer , each share of class b common stock will automatically convert into a number of shares of class a common stock based upon the applicable conversion rate in effect at the time of such transfer .
adjustment of the conversion rate occurs upon : ( i ) the completion of any follow-on offering of class a common stock completed to increase the size of the litigation escrow account ( or any cash deposit by the company in lieu thereof ) resulting in a further corresponding decrease in the conversion rate ; or ( ii ) the final resolution of the covered litigation and the release of funds remaining on deposit in the litigation escrow account to the company resulting in a corresponding increase in the conversion rate. .

Question: Analyse this data from a financial earnings document. what is the percentage change in the effective price per share from december 2011 to july 2012?
Choices:
23.75
0.79167
-0.23342
0.23342
0.18924
Correct choice index: 3