Welcome back to the QuickBooks Community, Rebeccam2. I'll be sharing details on the difference between billing rate levels and price levels in QuickBooks Desktop. Then, ensure you can send feedback so the option you want to perform will make it possible.

When you set up new items in QBDT, you enter a standard service rate or price. Then, you can set up custom rates or prices for particular employees/vendors, or customers. That said, you might use Billing rate levels to let you set custom service item rates for different employees and vendors. While Price levels let you set custom pricing for various customers or jobs.

Since you want a service item costs to change depending on the employee, this isn't currently available in QuickBooks Desktop. With this, I encourage you to submit feedback. These requests and suggestions are forwarded to the Product Development Team for consideration in future updates. To start with, you'll have to go to the Help icon and choose Send Feedback Online.

Lastly, you may refer to this article to view different details on how to make any changes or update your items in QBDT: Add, edit, and delete items.

I'll be around to help if you have any other questions about this concern. Just let me know by leaving a comment below. Have a nice day ahead.