Please explain how to find this in excel. The answer I came up with is not an option.

Janice plans to save $80 a month. starting today. for 20 years. Kate plans to save $80 a month for 20 years, starting one month from today Both Janice and Kate expect to earn an average return of 5.5 percent on their savings. At the end of the 20 years. Janice will have approximately _______ more than Kate. $66.67 $159.73 $18912 $0 $7814