notes to consolidated financial statements guarantees of subsidiaries .
group inc .
fully and unconditionally guarantees the securities issued by gs finance corp. , a wholly-owned finance subsidiary of the group inc .
has guaranteed the payment obligations of goldman , sachs & co .
( gs&co. ) , gs bank usa and goldman sachs execution & clearing , l.p .
( gsec ) , subject to certain exceptions .
in november 2008 , the firm contributed subsidiaries into gs bank usa , and group inc .
agreed to guarantee the reimbursement of certain losses , including credit-related losses , relating to assets held by the contributed entities .
in connection with this guarantee , group inc .
also agreed to pledge to gs bank usa certain collateral , including interests in subsidiaries and other illiquid assets .
in addition , group inc .
guarantees many of the obligations of its other consolidated subsidiaries on a transaction-by- transaction basis , as negotiated with counterparties .
group inc .
is unable to develop an estimate of the maximum payout under its subsidiary guarantees ; however , because these guaranteed obligations are also obligations of consolidated subsidiaries , group inc . 2019s liabilities as guarantor are not separately disclosed .
note 19 .
shareholders 2019 equity common equity dividends declared per common share were $ 2.25 in 2014 , $ 2.05 in 2013 and $ 1.77 in 2012 .
on january 15 , 2015 , group inc .
declared a dividend of $ 0.60 per common share to be paid on march 30 , 2015 to common shareholders of record on march 2 , 2015 .
the firm 2019s share repurchase program is intended to help maintain the appropriate level of common equity .
the share repurchase program is effected primarily through regular open-market purchases ( which may include repurchase plans designed to comply with rule 10b5-1 ) , the amounts and timing of which are determined primarily by the firm 2019s current and projected capital position , but which may also be influenced by general market conditions and the prevailing price and trading volumes of the firm 2019s common stock .
prior to repurchasing common stock , the firm must receive confirmation that the federal reserve board does not object to such capital actions .
the table below presents the amount of common stock repurchased by the firm under the share repurchase program during 2014 , 2013 and 2012. .

Year Ended December
<i>in millions, except per share amounts</i>
2014
2013
2012
Common share repurchases
31.8
39.3
42.0
Average cost per share
$171.79
$157.11
$110.31
Total cost of common share repurchases
$ 5,469
$ 6,175
$ 4,637

total cost of common share repurchases $ 5469 $ 6175 $ 4637 pursuant to the terms of certain share-based compensation plans , employees may remit shares to the firm or the firm may cancel restricted stock units ( rsus ) or stock options to satisfy minimum statutory employee tax withholding requirements and the exercise price of stock options .
under these plans , during 2014 , 2013 and 2012 , employees remitted 174489 shares , 161211 shares and 33477 shares with a total value of $ 31 million , $ 25 million and $ 3 million , and the firm cancelled 5.8 million , 4.0 million and 12.7 million of rsus with a total value of $ 974 million , $ 599 million and $ 1.44 billion .
under these plans , the firm also cancelled 15.6 million stock options with a total value of $ 2.65 billion during 2014 .
170 goldman sachs 2014 annual report .

Question: Analyse this data from a financial earnings document. what was the percentage change in the total cost of common share repurchases between 2012 and 2013?
Choices:
7.65174
-0.33168
1.57906
0.33168
-0.95665
Correct choice index: 3