Does anyone know if I'm missing something?
Thanks in advance.
Hi cagross99,
Based on your description, I suggest you to add a calculated field to the table.
1. Open the table by double-clicking it in the Navigation Pane.
2. Scroll horizontally to the rightmost column in the table, and click the Click to Add column heading.
3. In the list that appears, click Calculated Field, and then click the data type that you want for the result.
Access displays the Expression Builder.
4. Begin typing the calculation that you want for this field, for example:
[Quantity] * [Unit Price]
Note It is not necessary to precede the expression with an equal sign (=).
5. Click OK.
Access adds the calculated field, and then highlights the field header so that you can type a field name.
6. Type a name for the calculated field, and then press ENTER.
And please refer to these articles, these articles provide how to create calculated field detailed.
http://www.gcflearnfree.org/access2010/tables-how-to-create-calculated-fields-and-totals-rows
Hope its helpful.
Regards,