Santa Fe Railway Transports Industrial Products and Supplies Throughout the Western

Santa Fe Railway transports industrial products and supplies throughout the Western United States.Selected financial information for Santa Fe is provided in the table below.The CFO of Santa Fe,Richard Pennybags,wants to distribute $1B of cash using an open market stock repurchase.If the shares are bought back at the pre-repurchase price,then what proportion of shares will be repurchased?
Santa Fe Railway
Selected Financial Information

A) 5.63%
B) 7.47%
C) 8.48%
D) 10.63%
E) 11.83%