Please answer the given financial question based on the context.
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 2017 . 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 ) .
|period|total numberof sharespurchased|averageprice paidper share|total number ofshares notpurchased as part ofpublicly announcedplans or programs ( a )|total number ofshares purchased aspart of publiclyannounced plans orprograms|approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms ( b )|
|october 2017|515762|$ 77.15|292145|223617|$ 1.6 billion|
|november 2017|2186889|$ 81.21|216415|1970474|$ 1.4 billion|
|december 2017|2330263|$ 87.76|798|2329465|$ 1.2 billion|
|total|5032914|$ 83.83|509358|4523556|$ 1.2 billion|
( a ) the shares reported in this column represent purchases settled in the fourth quarter of 2017 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 september 21 , 2016 , we announced that our board of directors authorized our purchase of up to $ 2.5 billion of our outstanding common stock ( the 2016 program ) with no expiration date . as of december 31 , 2017 , we had $ 1.2 billion remaining available for purchase under the 2016 program . on january 23 , 2018 , 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. .
Question: by what percentage did the share price increase from october to november 2017?


Answer: The answer is:0.05262