Thanks for joining this thread, Jack4.

You can look for another third-party application that can do calculations on your fields. Just visit our marketplace for the list of applications you can use: https://desktop.apps.com/home.

If there's a need for you to show custom fields in QuickBooks, you can customize a report. Check out this link for instructions and detailed steps: Create and use custom fields in QuickBooks Desktop.

Stay in touch with me if there's anything else I can help you with customizing custom fields. I'll be right here to provide the steps.