WonderLister – a premier third-party eBay seller tool, comes with features so you can easily keep an eye on how your business is performing. Whether you have a small business or are running a large enterprise on eBay, as a business owner you need to know how much you are making. WonderLister provides you with a Profit & Loss report for each item you sell on eBay. The only input that’s required from you is the cost of the item and WonderLister will do the rest! You can select any date range for the report to be generated.