Financial report context:
table of contents the following table discloses purchases of shares of our common stock made by us or on our behalf during the fourth quarter of 2016 . period total number of shares purchased average price paid per share total number of shares not purchased as part of publicly announced plans or programs ( a ) total number of shares purchased as part of publicly announced plans or programs approximate dollar value of shares that may yet be purchased under the plans or programs ( b ) .

Financial table:
period: october 2016; total numberof sharespurchased: 433272; averageprice paidper share: $ 52.69; total number ofshares notpurchased as part ofpublicly announcedplans or programs ( a ): 50337; total number ofshares purchased aspart of publiclyannounced plans orprograms: 382935; approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms ( b ): $ 2.7 billion
period: november 2016; total numberof sharespurchased: 667644; averageprice paidper share: $ 62.25; total number ofshares notpurchased as part ofpublicly announcedplans or programs ( a ): 248349; total number ofshares purchased aspart of publiclyannounced plans orprograms: 419295; approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms ( b ): $ 2.6 billion
period: december 2016; total numberof sharespurchased: 1559569; averageprice paidper share: $ 66.09; total number ofshares notpurchased as part ofpublicly announcedplans or programs ( a ): 688; total number ofshares purchased aspart of publiclyannounced plans orprograms: 1558881; approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms ( b ): $ 2.5 billion
period: total; total numberof sharespurchased: 2660485; averageprice paidper share: $ 62.95; total number ofshares notpurchased as part ofpublicly announcedplans or programs ( a ): 299374; total number ofshares purchased aspart of publiclyannounced plans orprograms: 2361111; approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms ( b ): $ 2.5 billion

Additional report context:
( a ) the shares reported in this column represent purchases settled in the fourth quarter of 2016 relating to ( i ) our purchases of shares in open-market transactions to meet our obligations under stock-based compensation plans , and ( ii ) our purchases of shares from our employees and non-employee directors in connection with the exercise of stock options , the vesting of restricted stock , and other stock compensation transactions in accordance with the terms of our stock-based compensation plans . ( b ) on july 13 , 2015 , we announced that our board of directors authorized our purchase of up to $ 2.5 billion of our outstanding common stock . this authorization has no expiration date . as of december 31 , 2016 , the approximate dollar value of shares that may yet be purchased under the 2015 authorization is $ 40 million . on september 21 , 2016 , we announced that our board of directors authorized our purchase of up to an additional $ 2.5 billion of our outstanding common stock with no expiration date . as of december 31 , 2016 , no purchases have been made under the 2016 authorization. .

Question: what is the percentage increase of shares purchased as part of publicly announced plans from nov 2016 to dec 2016?
Answer: 2.718