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 understood you correctly you want to Show Total on your payment field. Is this the form you are working on https://www.jotform.com/70178756192161?
I have inspected your form and Show total option is set to NO. You can turn it ON inside of Form Builder or inside of payment field settings by setting Show Total option to Yes.
On my cloned form I have turned On this option successfully.
Here is my form: https://www.jotformpro.com/form/70185094109960
Feel free to clone it.
Hope this will help. Let us know if you need further assistance.