pre_text: table of contents celanese purchases of its equity securities information regarding repurchases of our common stock during the three months ended december 31 , 2017 is as follows : period number of shares purchased ( 1 ) average price paid per share total number of shares purchased as part of publicly announced program approximate dollar value of shares remaining that may be purchased under the program ( 2 ) .
post_text: ___________________________ ( 1 ) represents shares withheld from employees to cover their statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock units . ( 2 ) our board of directors has authorized the aggregate repurchase of $ 3.9 billion of our common stock since february 2008 , including an increase of $ 1.5 billion on july 17 , 2017 . see note 17 - stockholders' equity in the accompanying consolidated financial statements for further information. .
table: Period TotalNumberof SharesPurchased<sup>(1)</sup> AveragePrice Paidper Share Total Numberof SharesPurchased asPart of PubliclyAnnounced Program ApproximateDollarValue of SharesRemaining thatmay bePurchased Underthe Program<sup>(2)</sup>
table: October 1 - 31, 2017 10,676 $104.10 — $1,531,000,000
table: November 1 - 30, 2017 924 $104.02 — $1,531,000,000
table: December 1 - 31, 2017 38,605 $106.36 — $1,531,000,000
table: Total 50,205 —
question: Analyse this data from a financial earnings document. what was the percent of the number of shares purchased in october 1 - 31 2017 as part of the 2017 total