Open Purchase Order report that shows the actual amount open
Add an Open Purchase Order report that shows only the open items from each Purchase Order rather than the whole Purchase Order when 1 or more items on it are still open.
Add a Profit & Loss by Class to the default templates. This report will be the same as the Profit & Loss but will have a Class column, showing the P&L for each class, anything without a Class assigned will be under an 'unassigned' column