Hi Paul,

To sum two columns in a pivot table, you can follow these steps:

1. First, make sure that your pivot table is set up with the columns you want to sum. In your case, you should have a column for imports and a column for exports.
2. Next, click on any cell within the pivot table to activate the PivotTable Tools contextual tab.
3. From the PivotTable Tools contextual tab, click on the "Design" tab.
4. Within the "Design" tab, click on the "Grand Totals" button and select "On for Rows and Columns".
5. Now, right-click on any cell within the pivot table and select "Value Field Settings".
6. In the "Value Field Settings" dialog box, select "Sum" as the calculation type.
7. In the "Name" field, enter a name for the new column that will show the sum of the import and export columns. For example, you could call it "Total".
8. In the "Formula" field, enter the formula that will sum the import and export columns. In your case, the formula would be
   Formula:

   "=SUM(Import, Export)" 

   .
9. Click "OK" to close the dialog box.
10. You should now see a new column in your pivot table that shows the sum of the import and export columns for each product.