{"pre_text": ["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 ) ."], "post_text": ["( 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. ."], "table": [["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 2016", "433272", "$ 52.69", "50337", "382935", "$ 2.7 billion"], ["november 2016", "667644", "$ 62.25", "248349", "419295", "$ 2.6 billion"], ["december 2016", "1559569", "$ 66.09", "688", "1558881", "$ 2.5 billion"], ["total", "2660485", "$ 62.95", "299374", "2361111", "$ 2.5 billion"]], "table_ori": [["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 2016", "433,272", "$52.69", "50,337", "382,935", "$2.7 billion"], ["November 2016", "667,644", "$62.25", "248,349", "419,295", "$2.6 billion"], ["December 2016", "1,559,569", "$66.09", "688", "1,558,881", "$2.5 billion"], ["Total", "2,660,485", "$62.95", "299,374", "2,361,111", "$2.5 billion"]]}

Question: as of december 31 , 2016 what was the percent of the shares outstanding of the 2015 program yet to be purchased
Evidence:
text_5: as of december 31 , 2016 , the approximate dollar value of shares that may yet be purchased under the 2015 authorization is $ 40 million .
text_3: ( 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 .
Program: divide(40, 2.5)
Answer:
str_answer: 1.6%
exe_answer: 16