To reduce the price of your listing, go to the item page and click the "Edit Listing" button in the top left corner.
Depending on when your listing was originally created, you may need to complete a few extra steps on the listing form before you are able to save your changes. You will receive error messages to direct you to the new required fields that need your attention.
You can also click the “Markdown” button for your listing on your My Listings page.
Please note the markdown minimum of 10%. Once a listing is published, the price cannot be raised.