Payment help in a registration form

Hi, I'm trying to create a registration form with multiple choices but the calculator does't work as it supposed. then I was wondering if I could add (to Paypal) another mod of payment as Mater-card or Visa? 

I checked your form (http://www.jotform.com/72784388142263) but I was not able to find any calculation widget to your form. If you wish to perform calculations, please add a calculation widget. You can check this guide for more information: How to Perform Form Calculation Using a Widget. If you are referring to a different concern,  please provide us more details about your requirement so we can further investigate and check your concern. 

For your PayPal concern, it seems you are using the standard PayPal payment field. Using the standard PayPal payment field, after you click submit, it will redirect you to a PayPal page where the user can input their payment details including credit card option.