- raulAnswered on June 07, 2015 at 12:20 PM
I suggest you to check the following guide: https://www.jotform.com/help/328-How-to-Position-Fields-in-JotForm as it will help you to see how to position the fields in your form.
Once you've shrunk your fields you can use the form designer to create the 2-columns layout you want to use.
For the calculation ability you can refer to the following guide: https://www.jotform.com/help/259-How-to-perform-calculation-in-the-form
Let us know if you need further assistance.