Simple chrome extension for Amazon FBA and search box

Hello this is a simple extension for amazon sellers to it will work as such : 1- user install extension 2-when a user is in amazon product page , the ext will take ASIN number and calculate FBA fees for that item reference :[login to view URL] 3- the Ext can give the User the BreakEven price that he or should should buy the item in order to not loose money 4- there are few more fields that user can add like shipping cost , or other Fees ( per item) The ext will give $ amount for Breakeven price that the user has to sell more then that to make any money