Please answer the given financial question based on the context.
Context: sales of unregistered securities not applicable . repurchases of equity securities the following table provides information regarding our purchases of our equity securities during the period from october 1 , 2017 to december 31 , 2017 . 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 ( orapproximate dollar value ) of shares ( or units ) that may yet be purchasedunder the plans orprograms3|
|october 1 - 31|1231868|$ 20.74|1230394|$ 214001430|
|november 1 - 30|1723139|$ 18.89|1722246|$ 181474975|
|december 1 - 31|1295639|$ 20.25|1285000|$ 155459545|
|total|4250646|$ 19.84|4237640||
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 1474 withheld shares in october 2017 , 893 withheld shares in november 2017 and 10639 withheld shares in december 2017 , for a total of 13006 withheld shares during the three-month period . 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 share 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 share repurchase program . 3 in february 2017 , the board authorized a share repurchase program to repurchase from time to time up to $ 300.0 million , excluding fees , of our common stock ( the 201c2017 share repurchase program 201d ) . on february 14 , 2018 , 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 for repurchase under the 2017 share repurchase program . there is no expiration date associated with the share repurchase programs. .
Question: what is the percentage decrease in average price per share from october to november?


Answer: The answer is:8.91996