How can I add a processing fee?

I would like to add a processing fee to cover what paypal takes out. How do I do that?

I have checked the most recent form you are working on and I see that you have managed to include a processing fee by using the Tax option of the payment field in your form.

How-to-Add-Tax-to-Your-Payment-Form

Feel free to contact us anytime if you have other questions or concerns.