We have two groups of items in every sales order: hardware components and software items. We charge customers for annual support for both groups at a certain percent. For example, if the total annual software support is A percent and annual hardware support is B percent, we would have two rows for them on our quotes/sales orders and calculate them as follows:
Annual HW support: (Total hardware components cost) X B
Annual HW support: (Total software items cost) X A
These two items will be included in grand total.
How should I define these two items? how can I add them to quotes/sale orders?
I appreciate any help.