What Final Value Fee would be like if item listed BEFORE opening a Store, and sold AFTER?

[crazyrozy]

I've been seaching all over ebay and google, but  I can't find clear "black and white" answer to what happens to FINAL VALUE FEE for items which are listed BEFORE opening a Store, and sold AFTER. Logically thinking if should be lower fee based on Store package subscription. If not, it means a seller has to list items again after opening the store. For example, I listed headsets on 15th June....on 18th June I decided to subscrible for a Basic store package. Headsets sell on 20th June. What final value fee I would have to pay?

I'm not particular about exact % figure, it's more of a question of whether it would be fee as an individual seller I was before opening store or ebay store %. Thank you.