So, only 1 sale, on what is based your range? You need at least 2 sales.

Edit : Oh I see, you based the price on the range of the Wraith Wrap, but that's not that easy :

The Wraith Wrap is 3.5-4 buds, so it makes 3.75 of average, that makes an offer of 3.75*0.9 = 3.4 buds

Btw, the wrap has an outdated price, so the offer is worth much less

Please have a look here before your next suggestion: http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet-full-guide-soon-to-follow/