HI,
I'm trying to add the option for clients to choose the quantity method of which theu want to use when ordering a product.
I've added a"product option" with 3 radio buttons.


I would like to have it work this way:
When you click on one of the options it adds a "*10" ( times 10 or whatever price I decide) to whatever number you put in the input next to "add to cart".
the result should show in "Total Price".

so the method is:
(items or weight or price - each one has different value) * (number entered in input) = "Total Price:___"

I thought of using a new function and using a switch for each option, but not sure how to put it all together.

THANKS :)