transfer agent and registrar for common stock the transfer agent and registrar for our common stock is : computershare shareowner services llc 480 washington boulevard 29th floor jersey city , new jersey 07310 telephone : ( 877 ) 363-6398 sales of unregistered securities not applicable .repurchase of equity securities the following table provides information regarding our purchases of our equity securities during the period from october 1 , 2014 to december 31 , 2014 .total number of shares ( or units ) purchased 1 average price paid per share ( or unit ) 2 total number of shares ( or units ) purchased as part of publicly announced plans or programs 3 maximum number ( or approximate dollar value ) of shares ( or units ) that may yet be purchased under the plans or programs 3 .                 | total number ofshares ( or units ) purchased1 | average price paidper share ( or unit ) 2 | total number ofshares ( or units ) purchased as part ofpublicly announcedplans or programs3 | maximum number ( or approximate dollar value ) of shares ( or units ) that mayyet be purchased under theplans or programs3
october 1 - 31  | 5854930                                       | $ 18.93                                   | 5849517                                                                                     | $ 159819370                                                                                                               
november 1 - 30 | 4266                                          | $ 20.29                                   | 2014                                                                                        | $ 159819370                                                                                                               
december 1 - 31 | 826744                                        | $ 19.67                                   | 826639                                                                                      | $ 143559758                                                                                                               
total           | 6685940                                       | $ 19.02                                   | 6676156                                                                                     |                                                                                                                            1 included shares of our common stock , par value $ 0.10 per share , withheld under the terms of grants under employee stock-based compensation plans to offset tax withholding obligations that occurred upon vesting and release of restricted shares ( the 201cwithheld shares 201d ) .we repurchased 5413 withheld shares in october 2014 , 4266 withheld shares in november 2014 and 105 withheld shares in december 2014 .2 the average price per share for each of the months in the fiscal quarter and for the three-month period was calculated by dividing the sum of the applicable period of the aggregate value of the tax withholding obligations and the aggregate amount we paid for shares acquired under our stock repurchase program , described in note 5 to the consolidated financial statements , by the sum of the number of withheld shares and the number of shares acquired in our stock repurchase program .3 in february 2014 , the board authorized a new share repurchase program to repurchase from time to time up to $ 300.0 million , excluding fees , of our common stock ( the 201c2014 share repurchase program 201d ) .on february 13 , 2015 , we announced that our board had approved a new share repurchase program to repurchase from time to time up to $ 300.0 million , excluding fees , of our common stock .the new authorization is in addition to any amounts remaining available for repurchase under the 2014 share repurchase program .there is no expiration date associated with the share repurchase programs. .
Question: what was the total number of shares purchased in october?
Steps: Ask for number 5854930
Answer: 5854930.0
Question: and what was that in november?
Steps: Ask for number 4266
Answer: 4266.0
Question: what was, then, the change in number of shares purchased over the month?

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.
transfer agent and registrar for common stock the transfer agent and registrar for our common stock is : computershare shareowner services llc 480 washington boulevard 29th floor jersey city , new jersey 07310 telephone : ( 877 ) 363-6398 sales of unregistered securities not applicable .repurchase of equity securities the following table provides information regarding our purchases of our equity securities during the period from october 1 , 2014 to december 31 , 2014 .total number of shares ( or units ) purchased 1 average price paid per share ( or unit ) 2 total number of shares ( or units ) purchased as part of publicly announced plans or programs 3 maximum number ( or approximate dollar value ) of shares ( or units ) that may yet be purchased under the plans or programs 3 .                 | total number ofshares ( or units ) purchased1 | average price paidper share ( or unit ) 2 | total number ofshares ( or units ) purchased as part ofpublicly announcedplans or programs3 | maximum number ( or approximate dollar value ) of shares ( or units ) that mayyet be purchased under theplans or programs3
october 1 - 31  | 5854930                                       | $ 18.93                                   | 5849517                                                                                     | $ 159819370                                                                                                               
november 1 - 30 | 4266                                          | $ 20.29                                   | 2014                                                                                        | $ 159819370                                                                                                               
december 1 - 31 | 826744                                        | $ 19.67                                   | 826639                                                                                      | $ 143559758                                                                                                               
total           | 6685940                                       | $ 19.02                                   | 6676156                                                                                     |                                                                                                                            1 included shares of our common stock , par value $ 0.10 per share , withheld under the terms of grants under employee stock-based compensation plans to offset tax withholding obligations that occurred upon vesting and release of restricted shares ( the 201cwithheld shares 201d ) .we repurchased 5413 withheld shares in october 2014 , 4266 withheld shares in november 2014 and 105 withheld shares in december 2014 .2 the average price per share for each of the months in the fiscal quarter and for the three-month period was calculated by dividing the sum of the applicable period of the aggregate value of the tax withholding obligations and the aggregate amount we paid for shares acquired under our stock repurchase program , described in note 5 to the consolidated financial statements , by the sum of the number of withheld shares and the number of shares acquired in our stock repurchase program .3 in february 2014 , the board authorized a new share repurchase program to repurchase from time to time up to $ 300.0 million , excluding fees , of our common stock ( the 201c2014 share repurchase program 201d ) .on february 13 , 2015 , we announced that our board had approved a new share repurchase program to repurchase from time to time up to $ 300.0 million , excluding fees , of our common stock .the new authorization is in addition to any amounts remaining available for repurchase under the 2014 share repurchase program .there is no expiration date associated with the share repurchase programs. .
Question: what was the total number of shares purchased in october?
Steps: Ask for number 5854930
Answer: 5854930.0
Question: and what was that in november?
Steps: Ask for number 4266
Answer: 4266.0
Question: what was, then, the change in number of shares purchased over the month?
