cdw corporation and subsidiaries notes to consolidated financial statements holders of class b common units in connection with the distribution is subject to any vesting provisions previously applicable to the holder 2019s class b common units .
class b common unit holders received 3798508 shares of restricted stock with respect to class b common units that had not yet vested at the time of the distribution .
for the year ended december 31 , 2013 , 1200544 shares of such restricted stock vested/settled and 5931 shares were forfeited .
as of december 31 , 2013 , 2592033 shares of restricted stock were outstanding .
stock options in addition , in connection with the ipo , the company issued 1268986 stock options to the class b common unit holders to preserve their fully diluted equity ownership percentage .
these options were issued with a per-share exercise price equal to the ipo price of $ 17.00 and are also subject to the same vesting provisions as the class b common units to which they relate .
the company also granted 19412 stock options under the 2013 ltip during the year ended december 31 , 2013 .
restricted stock units ( 201crsus 201d ) in connection with the ipo , the company granted 1416543 rsus under the 2013 ltip at a weighted- average grant-date fair value of $ 17.03 per unit .
the rsus cliff-vest at the end of four years .
valuation information the company attributes the value of equity-based compensation awards to the various periods during which the recipient must perform services in order to vest in the award using the straight-line method .
post-ipo equity awards the company has elected to use the black-scholes option pricing model to estimate the fair value of stock options granted .
the black-scholes option pricing model incorporates various assumptions including volatility , expected term , risk-free interest rates and dividend yields .
the assumptions used to value the stock options granted during the year ended december 31 , 2013 are presented below .
year ended december 31 , assumptions 2013 .

Assumptions
Year Ended December 31, 2013
Weighted-average grant date fair value
$4.75
Weighted-average volatility<sup>(1)</sup>
35.00%
Weighted-average risk-free rate<sup>(2)</sup>
1.58%
Dividend yield
1.00%
Expected term (in years)<sup>(3)</sup>
5.4

expected term ( in years ) ( 3 ) .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
5.4 ( 1 ) based upon an assessment of the two-year , five-year and implied volatility for the company 2019s selected peer group , adjusted for the company 2019s leverage .
( 2 ) based on a composite u.s .
treasury rate .
( 3 ) the expected term is calculated using the simplified method .
the simplified method defines the expected term as the average of the option 2019s contractual term and the option 2019s weighted-average vesting period .
the company utilizes this method as it has limited historical stock option data that is sufficient to derive a reasonable estimate of the expected stock option term. .

Question: Analyse this data from a financial earnings document. as of dec 13 , 2013 , if all forfeited shares became vested , what percentage of shares would be vested?
Choices:
3.14843
1206475
3183.31135
0.31762
0.31616
Correct choice index: 3