In past, there used to be an option to set price for your extension in Google Chrome developer dashboard. But recently I tried, I could not find such an option any where. I have looked in their new dashboard as well as the old one but couldn't find any such possibility.
Searching on internet did not indicate such a change. Official documentation also indicates that it should be as obvious as selecting a price tier in the dashboard. I am wondering if I am missing something very obvious and that's why don't see the pricing option. Any help would be highly appreciated.
Google has disable the ability to publish paid extensions until further notice. You should of received an email to the account associated with your web store account a couple months ago.
Here is a news article also addressing it: https://www.theregister.co.uk/2020/01/27/google_disables_web_store/