pre_text: In the following table, we provide information regarding our common stock repurchases under our publicly-announced share repurchase program for the quarter ended December 31, 2019. All repurchases related to the share repurchase program were made on
  the open market. During the year ended December 31, 2019, we repurchased a total of 1,640,055 shares at an average price per share of $70.65 under our publicly-announced share repurchase program. In January 2020, our Board of Directors authorized the Company to repurchase up to an aggregate of $50 million of the Company’s common stock.
table: Period Total number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs
table: October 1 - October 31, 2019 13,425 $78.21 13,425 $48,950,059
table: November 1 - November 30, 2019 245,454 76.95 245,454 30,062,919
table: December 1 - December 31, 2019 185,973 80.95 185,973 15,008,242
table: Total 444,852 444,852
question: Analyse this data from a financial earnings document. What is the difference in the total number of shares purchased between November and December?