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 dow jones , and the s&p 500 .the graph assumes that the value of the investment in the common stock of union pacific corporation and each index was $ 100 on december 31 , 2002 , and that all dividends were reinvested .comparison of five-year cumulative return 2002 2003 2004 2005 2006 2007 upc s&p 500 peer group dj trans purchases of equity securities 2013 during 2007 , we repurchased 13266070 shares of our common stock at an average price of $ 115.66 .during the first nine months of 2007 , we repurchased 10639916 shares of our common stock at an average price per share of $ 112.68 .the following table presents common stock repurchases during each month for the fourth quarter of 2007 : period number of shares purchased average paid per total number of shares purchased as part of a publicly announced plan or program maximum number of shares that may yet be purchased under the plan or program . period                   | totalnumber ofsharespurchased[a] | averagepricepaid pershare | total number of sharespurchased as part of apublicly announcedplan orprogram | maximum number ofshares that may yetbe purchased underthe plan orprogram[b]
oct . 1 through oct . 31 | 99782                            | $ 128.78                  | -                                                                            | 9774279                                                                    
nov . 1 through nov . 30 | 540294                           | 124.70                    | 528000                                                                       | 9246279                                                                    
dec . 1 through dec . 31 | 1986078                          | 128.53                    | 1869800                                                                      | 7376479                                                                    
total                    | 2626154                          | $ 127.75                  | 2397800                                                                      | n/a                                                                         [a] total number of shares purchased during the quarter includes 228354 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] on january 30 , 2007 , our board of directors authorized us to repurchase up to 20 million shares of our common stock through december 31 , 2009 .we may make these repurchases 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 was the number of shares purchased in november of 2007?
Steps: Ask for number 540294
Answer: 540294.0
Question: and what was that number for the entire last quarter of that year?

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 dow jones , and the s&p 500 .the graph assumes that the value of the investment in the common stock of union pacific corporation and each index was $ 100 on december 31 , 2002 , and that all dividends were reinvested .comparison of five-year cumulative return 2002 2003 2004 2005 2006 2007 upc s&p 500 peer group dj trans purchases of equity securities 2013 during 2007 , we repurchased 13266070 shares of our common stock at an average price of $ 115.66 .during the first nine months of 2007 , we repurchased 10639916 shares of our common stock at an average price per share of $ 112.68 .the following table presents common stock repurchases during each month for the fourth quarter of 2007 : period number of shares purchased average paid per total number of shares purchased as part of a publicly announced plan or program maximum number of shares that may yet be purchased under the plan or program . period                   | totalnumber ofsharespurchased[a] | averagepricepaid pershare | total number of sharespurchased as part of apublicly announcedplan orprogram | maximum number ofshares that may yetbe purchased underthe plan orprogram[b]
oct . 1 through oct . 31 | 99782                            | $ 128.78                  | -                                                                            | 9774279                                                                    
nov . 1 through nov . 30 | 540294                           | 124.70                    | 528000                                                                       | 9246279                                                                    
dec . 1 through dec . 31 | 1986078                          | 128.53                    | 1869800                                                                      | 7376479                                                                    
total                    | 2626154                          | $ 127.75                  | 2397800                                                                      | n/a                                                                         [a] total number of shares purchased during the quarter includes 228354 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] on january 30 , 2007 , our board of directors authorized us to repurchase up to 20 million shares of our common stock through december 31 , 2009 .we may make these repurchases 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 was the number of shares purchased in november of 2007?
Steps: Ask for number 540294
Answer: 540294.0
Question: and what was that number for the entire last quarter of that year?
