For making orders for paintings I want a field with a price calculation of two other fields. The first of the two fields is a 'Size' the second is 'Frame'. 'Size' has many options: 40x40 up to 90x90 with each its own value. The Frame field has two options: Yes or No. It would be easy if the option to add a frame would be one price, but the price depends on how big the 'Size' option is filled in. Does anybody know how I can arrange this kind of structure?
Below is a picture of the Catalogue and the information I want to send an email with eventually.