While creating and editting a package you set the package price. After adding products to the package, you can determine whether prices of these products are included in the package price or if the price is added to the package price. But how to set this up?
Next to the added product in the event you find a button 'included?' which can be activated/deactivated.
When this button is activated (green), the product price is included in the package price.
When this button is deactivated (grey), the product is not included in the package price and is added to the package price.