In our cart we have optional products (like gift wrapping) that the user can add. We also have options for selected items that might impact the cost (like choosing a hardback book vs a paperback).
How can we make it clear what the price of the optional item is without causing confusion about whether the price is included in the total or not? How can we indicate that selecting an option will change the cost?
- How should we display the price of Gift wrapping when it's not checked by user?
- How should we clarify the price for hardcover and paperback?