So the first thing I notice in your calculated metric:
Engaged user rate = (link click, download, form start, video view) / total visits
every visit will have multiple links, downloads, form starts and video views within a visit... so the % will generally always be above 100% based on this...
Are you trying to get something more like "Visits with Engagement / Total Visits" - to get the % of engaged visits?
If so, then you just have to make a slight adjustment to your calculated metric...
First, make a VISIT level segment:
VISIT
link click exists
OR
download exists
OR
form start exists
OR
video view exists
This will get you the Visits with any of these engagement factors, for reference I am calling this Segment "Visits with Engagement Actions"
Now, in you calculated metric you can use:
Segment: Visits with Engagement Actions
Visits
/
Visits
This should now get you the % of engaged Visits
If you are trying to get engaged users
Then you can do a similar segment using VISITOR scope (or even use the same VISIT scope segment, as Visitor who have ever had a visit with the scenario would still work), and in the calculated metric use:
Segment: Visitors with Engagement Actions (or even Visits with Engagement Actions)
Unique Visitors
/
Unique Visitors
In these examples, you are dividing based on the same scope... not mixing many raw actions against a much smaller denominator....