Setting shipping costs through PayPal is simple:
- Log in to your PayPal account.
- Click the "Profile" link from the navigation bar at the top of the screen (second row, last link).
- In the "Selling Preferences" column, click "Shipping Calculations".
- Scroll down — You will see a set of fields where you can enter shipping costs based on the total amount of the order.
- After you've entered the desired shipping costs, be sure to click the "Edit" button for them to take effect.