Welcome to the Community forum, api3.
At this time, able to display selling price with margin on purchase bill is unavailable in QuickBooks Online (QBO).
I know how the feature you want would be helpful in the program. The Community recognizes feedback and suggestions from customers like you can help us improve our product and services to our customers' delight.
While we continue to make your experience with us even better, I recommend visiting our QuickBooks Blog to get the recent news, information about the latest features, and updates.
Also, to get the most out of QuickBooks for your business, check some articles that are designed to help you get acclimated to the software. They can be accessed at the following link: QuickBooks Tutorials.
I'm only a couple of clicks away if you need further assistance in managing your account. It's always a pleasure to help. Have a great day!
