What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If I understand correctly, you want to include in your form, items that at the end have the total calculated automatically. If this is the case, please find inside this guide how to include calculations in your form:
I have created a demo form, you can access the form here: http://form.jotformpro.com/form/51384395407965.
I hope this is helpful. If any other question, please do not hesitate to contact us.