I would like to show the cost of adding the option/variant in the variant selector dropdown, using Shopify Debut theme. From browsing Shopify forums I determined I will have to add code to my product template file as well as JavaScript. The code would have to add or subtract from the currently selected variant to determine how much more selecting the other variant would be. For example: BBQ Grill Product Options: Rotisserie +$100 Smoker Box +$55 This website does a good job of it: https://www.bbqguys.com/coyote/c-series-28-inch-2-burner-built-in-natural-gas-grill-c1c28ng

Can someone point me in the right direction?