Hi CGW Installations, 

You can customise a Profit and Loss report if you would like to see the total sales from each client. Let me guide you how. 

1. Go to Reports tab and search Profit and Loss. 
2. Click Customise. 
3. On Columns drop-down menu, select Customers. 
4. Then select Run report. 

Also, you can check on this article for your reference: Reports included in your QuickBooks Online subscription.

Feel free to drop a comment below if you need further assistance on reports. Have a great day!