You can create categories for packages so you can get a revenue total for each package or each package type.
Click on Setup, Inventory, Categories.
Hit Add New Item and add the category.
You can create a separate category for each package type, 10 full days and 10 half days in our example.
Or you can create one category to cover all packages, Daycare package in our example.
Hit Save when done.
Click on the Inventory.
Click on 10 full days daycare and choose the correct category.
Hit Save when done.
Do this for each package type.
Now you can go to Reports, Revenue, Sales report.
Choose Detailed or Summary. Detailed will show the details of the purchase, client and pet name, package type. Summary will give only a total amount,
On All Categories, click Select and click '...' button
Choose the categories for this report.
A Summary report will just give totals for each package category.