five-year performance comparison 2013 the following graph provides an indicator of cumulative total shareholder returns for the corporation as compared to the peer group index ( described above ) , the dj trans , and the s&p 500 .the graph assumes that $ 100 was invested in the common stock of union pacific corporation and each index on december 31 , 2012 and that all dividends were reinvested .the information below is historical in nature and is not necessarily indicative of future performance .purchases of equity securities 2013 during 2017 , we repurchased 37122405 shares of our common stock at an average price of $ 110.50 .the following table presents common stock repurchases during each month for the fourth quarter of 2017 : period total number of shares purchased [a] average price paid per share total number of shares purchased as part of a publicly announced plan or program [b] maximum number of shares remaining under the plan or program [b] . period                   | total number of shares purchased [a] | average price paid per share | total number of shares purchased as part of a publicly announcedplan or program [b] | maximum number of shares remaining under the plan or program [b]
oct . 1 through oct . 31 | 3831636                              | $ 113.61                     | 3800000                                                                             | 89078662                                                        
nov . 1 through nov . 30 | 3005225                              | 117.07                       | 2937410                                                                             | 86141252                                                        
dec . 1 through dec . 31 | 2718319                              | 130.76                       | 2494100                                                                             | 83647152                                                        
total                    | 9555180                              | $ 119.58                     | 9231510                                                                             | n/a                                                              [a] total number of shares purchased during the quarter includes approximately 323670 shares delivered or attested to upc by employees to pay stock option exercise prices , satisfy excess tax withholding obligations for stock option exercises or vesting of retention units , and pay withholding obligations for vesting of retention shares .[b] effective january 1 , 2017 , our board of directors authorized the repurchase of up to 120 million shares of our common stock by december 31 , 2020 .these repurchases may be made on the open market or through other transactions .our management has sole discretion with respect to determining the timing and amount of these transactions. .
Question: what portion of total number of shares purchased during the fourth quarter of 2007?
Steps: divide(3831636, 9555180)
Answer: 0.401
Question: what is the number of shares attested to upc by employees to pay stock option exercise prices during the last quarter of 2017?
Steps: Ask for number 323670
Answer: 323670.0
Question: wha about the total number of shares purchased during the fourth quarter of 2017?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
five-year performance comparison 2013 the following graph provides an indicator of cumulative total shareholder returns for the corporation as compared to the peer group index ( described above ) , the dj trans , and the s&p 500 .the graph assumes that $ 100 was invested in the common stock of union pacific corporation and each index on december 31 , 2012 and that all dividends were reinvested .the information below is historical in nature and is not necessarily indicative of future performance .purchases of equity securities 2013 during 2017 , we repurchased 37122405 shares of our common stock at an average price of $ 110.50 .the following table presents common stock repurchases during each month for the fourth quarter of 2017 : period total number of shares purchased [a] average price paid per share total number of shares purchased as part of a publicly announced plan or program [b] maximum number of shares remaining under the plan or program [b] . period                   | total number of shares purchased [a] | average price paid per share | total number of shares purchased as part of a publicly announcedplan or program [b] | maximum number of shares remaining under the plan or program [b]
oct . 1 through oct . 31 | 3831636                              | $ 113.61                     | 3800000                                                                             | 89078662                                                        
nov . 1 through nov . 30 | 3005225                              | 117.07                       | 2937410                                                                             | 86141252                                                        
dec . 1 through dec . 31 | 2718319                              | 130.76                       | 2494100                                                                             | 83647152                                                        
total                    | 9555180                              | $ 119.58                     | 9231510                                                                             | n/a                                                              [a] total number of shares purchased during the quarter includes approximately 323670 shares delivered or attested to upc by employees to pay stock option exercise prices , satisfy excess tax withholding obligations for stock option exercises or vesting of retention units , and pay withholding obligations for vesting of retention shares .[b] effective january 1 , 2017 , our board of directors authorized the repurchase of up to 120 million shares of our common stock by december 31 , 2020 .these repurchases may be made on the open market or through other transactions .our management has sole discretion with respect to determining the timing and amount of these transactions. .
Question: what portion of total number of shares purchased during the fourth quarter of 2007?
Steps: divide(3831636, 9555180)
Answer: 0.401
Question: what is the number of shares attested to upc by employees to pay stock option exercise prices during the last quarter of 2017?
Steps: Ask for number 323670
Answer: 323670.0
Question: wha about the total number of shares purchased during the fourth quarter of 2017?
