How to calculate amount and pass to Payment form?

I created an event registration form. I can't seem to figure something out and I'm not sure if this is possible. If an individual registers multiple guests for the event, I was able to set the settings so the guest names and meals preferences are entered for the number of guests attending. My problem is the following - Can I set parameters on the form to automatically adjust the payment selection to correspond with the Total number of guests for your party? For example, if a person registering for the event selects Total number of guests for your party as "3", can I set a parameter to recognize payment processed through PayPal should select "3 Guests $105.00". Is this possible?

Apologies for any inconveniences caused. This is possible by use of calculation widget then you will pick the quantity of attendees and multiply by value of meal cost.

https://www.jotform.com/help/259-How-to-Perform-Form-Calculation-Using-a-Widget

This will then by default calculate the total cost depending on the number of attendees selected.

You will then configure on Paypal Payment for it to pick amount form the calculation widget and this is the amount the client will be charged.

https://www.jotform.com/help/275-How-to-Pass-a-Calculation-to-a-Payment-Field

I have cloned your form and setup the calculations as explained above.

https://www.jotform.com/build/80904721006953

Kindly feel free to clone and use the form.

Thank you so much!! I cloned the form you created for my event registration and it's working perfectly and I wanted. Thank you so much for your help!