Yes, you can use the adjust quantity option in QuickBooks. I'll show you some steps on how you can use the option:
Click the + New button, then select Inventory qty adjustment.
Set the Adjustment date
Select the adjustment account under Inventory adjustment account.
Add the products under the Product table.
Set a new quantity for the items you want to adjust.
Add a memo if needed, then click Save and close.
Also if you're unsure what accounts to select for the adjustment account, you'll want to contact an accountant. They can help you with the adjustments and ensure your books and inventory assets are correct.