passing calculated field to multiple payment forms

I have setup multiple embedded payment forms as suggested. I am no passing the calculated field to the payment forms, however the examples of using the thank you page does not coordinate with previous examples of embedding the payment form.

I really don't want to have to abandon the idea of embedding a form as they change their mind about payment (without the multiple payment forms being embedded) then they will have to restart the original form.

I tried changing the url in the embeded to pass the variable however it just puts the text of the variable in the total of field of stripe/paypal/etc

I assume that you are working on the following form - https://www.jotform.us/form/92236039601149

The data can be passed from one form to another only when a form is submitted. 

How to Automatically Pass Form Data to Another Form 

Your main form does not have a submit bottom so the data cannot be passed. 

On your main form, you should just have payment options. And you should add the Input Table field with calculation to each of your embedded payment forms. This way you will not have to pass the data. 

Please check the following guide:

How to Create a Basic Multiple Payment Form