Selling question

So I am running TTC as well as MM and Awesome Guild Store. I have several items I want to sell (at this point, many are furniture patterns)…on mouse-over, TTC shows a value range of (for example) 250 - 350. There is no Master Merchant data (which I assume means no sales in the last couple of weeks). When I try to list, the default list price is only 30 g. This seems to be a default value, and every item I have with no MM history is listing at 30. Why is this? Does the TTC value not get used at all? What do you all do (I mean obviously I could just modify it, but wonder if I’ve missed a setting)