Auto calculate widget for a drop-down quantity

Hi,

I have a standard drop-down that the user can choose to pick the number of people attending a party. 

https://www.jotform.com/build/72005759576969

The client wants this to auto calculate a dollar amount based on the number that the person selects. Each person will charged $10 for example.

Is there a widget or something that can help me with this?

Thanks!

I can see you have already added a payment integration and already set up special pricing based on the selected quantity. 

However, if you would like to use a drop down, you could set up calculation values to the options by following this guide: https://www.jotform.com/help/301-How-to-Assign-Calculation-Value 

This guide will help you performing calculations on your form: https://www.jotform.com/help/259-How-to-Perform-Form-Calculation-Using-a-Widget 

And this guide will help you passing the calculation to the payment field: https://www.jotform.com/help/275-How-to-Pass-a-Calculation-to-a-Payment-Field 

I hope this helps.