Is there a way to include price per quantity of sub options in addition to the base product price?

For example, I want to add a photography service (product) to my form that costs $250 flat base price. That service will have sub options that cost a certain amount PER IMAGE in addition to that base price. I want to make the base price mandatory for the sub options to be selected so that people can't just choose the cheaper per image (sub option) price. But I DO need the additional price per *quantity* of the sub options. Is this possible? Or is there a work-around? 

Thanks! 

Unfortunately, we cannot create a single product with the base price and the sub options based on the quantities. You will need to add at least two products.

For example, one product selected and required by default, and another product with the sub options.

Form example:

https://form.jotform.com/80785789174980

Alternatively, it might be possible to calculate the total using standard form fields and then pass it to the payment field.

Related guides:

- How to Perform Form Calculation Using a Widget

- How to Assign Calculation Value

- How to Pass a Calculation to a Payment Field

If you need any further assistance, please let us know.