Can you round numbers in Word?
What Is a Switch?
Field code switches allow you to modify the resulting data that you merge into a document.

Andy Roberts / Getty Images
A Numeric Picture Field Switch (#) determines the display of a numeric result.
If the result of a field is not a number, this switch has no effect.
With the mail merge main document open, pressAlt + F9to view the field codes.
Your number will appear rounded to the decimal place you specify.
If it does not display immediately, refresh the document by minimizing it to the toolbar and reopening it.