Simplified field notation allows users to create forms that support custom calculations when users fill out the form. Once a user creates their desired form field select the All Properties Button or Double click on the form field.
Select the Calculate Tab- Simplified Notation – Edit
Create your desired formula based on your form names, ie. if you want textfield2 to equal textfield0 minus textfield1 the formula would read (textfield0-textfield1)
Please note the text field names need to be exactly how they appear in the text file properties. They are case sensitive. For spaces it is best to use an underscore instead of an empty space.