IF you accepted an offer on an item you need to account for the fact that the offer price includes BPF, which you as the seller pay. So that is approx £1.12 accounted for. The item had simple delivery on it by the looks of things so the buyer would have paid postage you just need to print the label out supplied by ebay, (you don't receive these funds)
You need to goto your seller hub here: https://www.ebay.co.uk/sh/fin/summary Click on the item in question and it will give a full breakdown in fees. eg if you promoted the item etc.
eBay can be a lot of things but one thing they do do well is collect their fees and correctly.
