You can choose how to show the price of bundled products in the order details page when the “Use prices of bundled items” option is enabled.
In the general settings, go to In the order, show and pick one of the following two options:
- Price of bundle: shows the price of the entire bundle and so shows zero next to each of the bundled items.
- Price of bundled items: show the price of every single product of the bundle and so show zero next to the bundle title.