So I'm building an ecommerce site that sells items in the following quantities:
The whole option is the default. So when they input the stock quantity (e.g. 100 whole items), I want that to mean that there are 200 half items, etc..
As a result, if someone orders 3 halves, I want the stock to be reduced to 98 whole and 1 half of that item.
Is there a way to do this in expresso store?