Thank you for screen capture.
You have to retrieve the total quantity of the product in the invoice.
We assume that you understand that in order to proceed with these actions you must have at least basic MySQL skills:
1. Go to this file:
"c:\Users\%username%\AppData\Local\eMagicOne Store Manager for PrestaShop\Reports\SQL\Invoice15.sql"
*use file 13 or 14 if you have older PrestaShop website.
2. Add a line to select:
RIGHT(T2.product_name,1) * T2.product_quantity AS 'final_qty'
*don't forget about comma :-)
3. Go to this file:
"c:\Users\%username%\AppData\Local\eMagicOne Store Manager for PrestaShop\Reports\Invoice.fr3"
4. Insert a new column under MasterData1 section
5. In new Memo write Text value:
6. Should look something like this:
After that you should have additional column in Invoice that contains "final" quantity.