BigTracker has a built in Profit Calculator that allowing you to quickly see the potential profit with inputting Cost.The Profit Calculator will be available under Product Research and Product Tracker.
After the Cost is inputted, you can either see the Estimated Profit/Margin or ROI using the current Price. You can also entering the desired Profit/Margin or ROI to calculated the price it should be at.
Entering either one of the Price+shipping, Est. Profit, Est.Margin, or ROI can be refreshed with appropriate Amazon Referral Fee. The Est. Revenue and Profit at the right hand side will change according to refreshed data.
Note: Under the Product Tracker, you will be able to save the data that you entered.