eBay itself shows the actual rate when the sale happened. A currency converter only shows you today’s conversion rate. That’s all well and good for items which ended recently, but if the listing ended 6 months ago that can be a big difference. $1,400 was £1,162 6 months ago, £80 more than today’s USD to GBP value.

Ignore the monkey. It’s part of a Chrome extension I made last month that I wasn’t allowed to share here.
I’ve already voiced my opinion about sites like FlipperTools before. They’re all ad-ridden and track what you search for. Bookmarking the eBay CGI link and pasting in the item ID is far quicker, too.
You guys with your non-eBay ad-ridden links. All you need to do is use this URL:
E.g. if the URL is www.ebay.com/itm/Pokemon-TCG-E3-Convention-Promo-SEALED-Pack-Kirby-Manhole-Pichu-Hoppip-JP-Back/292907204367, changing the url to cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersion&item=292907204367 will show you the actual sold for price.
The CGI link works on all eBay sites. If you’re in the UK, you’ll want to use cgi.ebay.co.uk, if you’re in Australia, cgi.ebay.com.au, etc.