How do I print an analysis for a single day only in the reports, such as the Multi-column?

When you view the Person screen that lists the food recall and various days, you will see a check box before each day. 

You can select which day or days you want to include in the analysis by checking or unchecking this box.  If you have several days entered, you can uncheck the box at the very top of the list (which unchecks all days) and then only check the day(s) that wish to be included on reports.