Made my first sale on eBay, now I'm confused by eBay final value fees

Hi there! I just recently made my first sale on eBay (hurrah!). A simple PS2 memory card, put up for sale during a promo for free insertion fees. The buyer paid a buy-it-now price of $10 with a shipping cost of $15.48 (Canada Post Expedited), of which it says on the Paypal invoice that eBay took a fee of $1.04. This is fine. I received an email today saying that an automatic payment had been made to eBay for the item I sold this month. I check the Paypal invoice and it says I've made another $2.68 payment ($1.05 final value fee + $1.63 final value fee on shipping). I'm confused why another payment was made when eBay already got a payment when the item sold? I tried looking at the faqs on final value fees but it still didn't make anything clear for me. It just seems now that I'm paying a lot of fees on something that didn't sell for that much in the first place. Any help or clarification would be greatly appreciated. Thanks! Spencer
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I sold something for $40. Paypal took their 4% or more on the shipping and $40, then ebay just sent their invoice for $7.70.

So out of a $40 sale I got $26?????No wonder why all ebay prices are so expensive..everyone one has to take their piece of the pie and the buyer gets screwed. Well no more selling on Ebay for me.!!!!They can **bleep** themselves!!!Bandits