Hello,

I set up a unit in time which is 6 min long and called AW. An AW should have a price of 5 EUR. I would like to create different services now with the unit AW and it should automatically calculated the price.

Imagine there is service XY which is defined to need 3 AW (in fact 18 min) I would like to see / to get a price oft 15 EUR on the SO, invoice aso.

If I later decide that my cost are higher I simply have to update the prince oft the AW (there are hundred services...)

How can I manage hat?