Allows users to determine the Unit cost, Retail Price, and margin and markup percentage. It allows the user a quick and intuitive way to determine values given the smallest amount of information required. The handy sliders allow for a user to quickly adjust the margin and/or markup, which automatically adjusts the retail or unit cost. It can be used to determine the unit cost based on a desired retail price, or the proper retail price given the unit cost. The margin and markup can be minutely adjusted by using the plus and minus buttons on the always visible keypad. Why bother typing in all the information, when you can simply enter the minimum and adjust from there? No more guessing the right margin or markup in order to determine prices, find it quickly and easily!