The atlas claims the total number of votes in the 2016 presidential election in Florida was 9,502,747. However, this number is at odds with the FEC's election results report.
https://www.fec.gov/resources/cms-content/documents/federalelections2016.pdfIn the table on page 6 of this report it says the total number of presidential votes in Florida in 2016 was 9,420,039. Among the other sources including this number as the Florida total is the American Presidency Project.
https://www.presidency.ucsb.edu/statistics/elections/2016