# Price calculator **Menu: Sales → Product templates/Subproduct templates → Main service/Additional service**

If you don't see the price calculator, make sure your current user has the Role "Price calculation user" assigned.

With the price calculator, you can quickly and easily calculate both your markup and margin, defining the optimal purchase and/or sales price. The price calculator can only be used as soon as a markup or margin has been set on at least one level. In the table below the calculator, you can see the markups and margins already defined. The selected markup or margin is automatically taken over in the calculator. You can manually adjust the values in the calculator. [![image-1654691389788.jpg](https://help.advatra.com/uploads/images/gallery/2022-06/scaled-1680-/image-1654691389788.jpg)](https://help.advatra.com/uploads/images/gallery/2022-06/image-1654691389788.jpg)