Updated: Jan 6, 2021
Here's how to do it:
Head over to Page insights (on the page, not creator studio)
On the left, hit 'Posts'
Scroll until you find Engagement etc.
Organise by 'Reach: Fans/Non Fans' and 'Engagement Rate'
You're looking for above 7% to be awesome on the Engagement rate, and the reason you want to organise the other column by Fans/Non Fans, is because that will give you an indicator of the most important trigger to the elusive algorithm - Shares.
Hey, it's all about Doing it Differently!