Formulas not added as table expands

I use Excel tables a LOT, and and have grown to love what they add to the capabilities with Excel. I'm stumped by a particular table that I have, and could use some insight. Typically, as information is added to any of the fields immediately below or to the right of a table, the range of the table will expand to accommodate the new fields. If I have formulas in my table and add a new row to the bottom, the formulas and formatting typically copy down into the new range as well. I have a particular table for which this has not proven true. Each time I add new data, I have to copy all of my formulas and formatting, and this has become frustrating. As yet, I have not found any particular settings that would control this behavior of Excel. Geniuses, what say you?

Are you sure this table is actually a 'Table', created by clicking Table on the Insert Tab ?
Easiest way to tell is by right clicking anywhere within the table, do you see 'Table' on the menu that expanded upon right click ?

It is most definitely a table. It is called BankAccts, and was added using ctrl + T.

Can you attach a sample book?
Remember to desensitize the data.
Click on GO ADVANCED and then scroll down to Manage Attachments to open the upload window.

This was the fix. Thank you alvin-chung.