Use case: I sell a particular software. Sales reps often give away an amount of free licenses with the paid licences being sold. If I'm selling 870 licenses but 60 of them are free I want to do a calculated product where sales reps enter in paid vs free licences to calculate the price but want it to update a field of "paid licences" with the difference between paid and free licences on this line item.

Product A unit Cost $50

QH Calc Price would be (Paid Licenses - Free Licences)* unit cost ($50)

but the properties they enter at paid and free need to calculate another property:

DCLIP: QUANTITY = Paid - Free for example