they have changed deliver to simple delivery how do i add cost of packing

[mandypusey0179]

this does not work

Setting your Delivery options from the Selling page:

1. Go to the Selling page and select List an item.
2. Start your listing.
3. Scroll down to the Delivery section. We'll recommend a service and calculate your postage based on how other sellers sent similar items.
4. You can change the service by selecting Change Delivery Service and Change the postage charge. You can also offer free postage by ticking the Free for buyer box, so you pay for delivery. Learn more on the benefits of offering your buyers Free delivery.

[plpmr]

you add the cost into the item price.