Result in added text box

Dears,

I have added the last text box in the excel user form and apply the formula but the result is not shown in the last text box and the cursor skiped the text box and transfered to the add button.

Please see the attached file and give the solution and also i want to change the QSP text box in combo box.

Thanks & Best Regards

Dear All,
I have attached excel sheet.
When I Put quantity (say 5) in column I, Sheet "Template', it should be shown in PO sheet at column "picked bags".
Can the whole process be possible with macro.
Thanks in advance.