For mine, I did a refund for combined shipping of 3 fully paid items (3 variations of one listing, in a single cart/order) before the delayed charges.
When it became a promoted listing sale the next day (yesterday), the promoted listing fees were based on the original paid amounts for each item, and did not account for the refunded amount given the night before.
The refund transaction the night before only includes credits for Final value fees, as it was not a promoted listing sale until the next day.