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 2015 . 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 2015|1658771|$ 62.12|842059|816712|$ 2.0 billion|
|november 2015|2412467|$ 71.08|212878|2199589|$ 1.8 billion|
|december 2015|7008414|$ 70.31|980|7007434|$ 1.3 billion|
|total|11079652|$ 69.25|1055917|10023735|$ 1.3 billion|
( a ) the shares reported in this column represent purchases settled in the fourth quarter of 2015 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 approved our purchase of $ 2.5 billion of our outstanding common stock ( with no expiration date ) , which was in addition to the remaining amount available under our $ 3 billion program previously authorized . during the third quarter of 2015 , we completed our purchases under the $ 3 billion program . as of december 31 , 2015 , we had $ 1.3 billion remaining available for purchase under the $ 2.5 billion program. .
Question: as of december 31 , 2015 , what was the percent of the $ 2.5 billion program remaining available for purchase
Answer:
0.52