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.
You are referring to the form calculation field correct? I checked your form and it appears that you have set it up correctly. You were able to determine the form calculation to display the $ currency and show 2 decimal places.
You can add currency to the form calculation by inserting the currency in the calculation wizard.
For more information regarding form calculation, simply check out this guide: How to perform calculation in the form?
Let us know if you need further assistance.