Numbers SUM formula shows as date and time
I have a MacBook Pro. I'm trying to total a column of numbers using SUM formula in a Numbers spreadsheet. One column totals fine. The column next to it shows a date and time in the SUM cell instead of the total of the numbers in the column. I can't figure out how to fix it.
MacBook Pro with Retina display, OS X Mavericks (10.9.5)