Solved Payment Form that allows calculated fields as input

Hello,

I have created the following price calculator using the "Calculated Fields Form" plugin.

Now I want the user to be able to click on Proceed to Payment and a payment form should pop up already including the amount to pay taken from the field "Final Price" from the calculator above.

However, I found these two Divi tutorials about payment forms:
https://www.elegantthemes.com/blog/...ayment-buttons-to-your-pricing-tables-in-divi
and
https://elegantmodules.com/modules/payments-for-divi/
where in both cases you need to input a pre-defined money amount to be paid instead of allowing for it to be taken from a calculated field. Do you know of any plugin or any way to receive payments from a calculated field? Or do you know if one of those two solutions above also allows to compute the payment amount from a calculated field?

Here my website url: www.tekproofread.altervista.org
And here the price calculator url in particular www.tekproofread.altervista.org/price-calculator

Thank you very much for the help in advance

 

After a lot of research I could not find how to do that so I used some paid plug-in that allows price calculation and payment