Welcome to the Community, @joe08.

I'll help you run a Profit & Loss report by job, which you can customize to show the percentage of income in QuickBooks Online.

In QuickBooks Online, you can run either a Profit & Loss by Customer report, which you can customize to show the %of income or Profit & Loss as % of total income.

QuickBooks Online uses Customer as equivalent to Job. I'll show you how to run and customize Profit & Loss by Customer report.

Here's how:

1. From the left menu, go to Reports.
2. Enter Profit & Loss by Customer in the search box.
3. Click the Customize button.
4. Under Rows/Columns, hit Change columns.
5. Tick the check box for % of Income and % of Expense.
6. Click Run report.

For future reference, you can read this article about memorizing reports: Memorize reports in QuickBooks Online.

Let me know if you have questions about running reports in QuickBooks Online. I'm always here to help. Have a great day.