yeah, the calculation for pricing is weird. When the huge drop happened in June (not the hack crash, just the 30-to-ten crash), my prices wouldn't even come close to keeping up with the declining BC price, even on a rolling 24-hour period. When prices were recovering the next day they still wouldn't catch up, and there was a good 25% of arbitrage in there.The calculation for your listing is a little strange too. If you edit a price it edits at the BC value when you actually listed it, so you might refresh to your listing and see the price is still higher or lower (sometimes by a lot) than you intended.