Thanks for the response guys! After I kept on trying, I found the solution.

Actually, I had previously tried what Nikto mentioned and the text box said "#Error" when I went into Preview. But the proper way is to place it in the Report footer (not the Page footer).

Take a look at the attachments to see what caused the confusion: In design view, Report Footer appears below Page Footer, but in Preview, it's the opposite. Because I was working in design view, I didn't consider placing the text box in the Report footer thinking that would be way too low on the page when I print it.