It is not so much about the numbers but more about what works best for what you are selling. I took a look at some of your listings and most are commodity type items that are best suited for BIN fixed price listings. Auctions generally work best when you have items where it is difficult to do market research and find a general competitive price range or there is a wide disparity in the price the items are selling for.
Most of your listings appear to be using stock photo's and product descriptions that have been cut and pasted from a manufacturers site or from other advertising. All the items show as being in Sri Lanka. Do you actually have these items in your possession or are you drop shipping them out of China? You have a number of items on auction with a starting price of $.99 and free shipping. You may want to look at your cost model I am not sure of the postage costs out of Sri Lanka but your profit margin on these items would have to be pretty small if they sell at the starting price.
