Trend chart of a custom data similar to "Recently Created Chart"

[Ajay Bakhshi]

I am looking for trend chart actually (incoming rate) on lines of Recently Created Chart. I can live with Created Vs Resolved too.
If nothing else just the incoming rate chart (based on period) would suffice.

Here are the details:
I want to get the above chart for high priority jira issue. A jira issue is logged with "Normal" priority and some time later (1 day to 2 months) the priority might get increased to blocker/Important (lets call them high priority). I want to capture on a weekly basis how many issues of high priority came in. I cannot use "Recently Created Chart" since it shows when the issue was created; NOT when its priority got increased to higher priority.Z

NOTE: I know how to write JQL query to capture these results for 1 week/1month etc.

Constraints:
1. I am a non-admin user 
2. I want to use existing/pre-installed gadgets (as I am not a admin user)
3. I am using Data Center version of Jira.

[Carla Ann Rowland]

you should be able to create a dashboard and have the created vs resolved chart available you as an end user.  Are you using a service desk? 

your query should be along these lines:

this version is beginning of the week and will be a rolling 4 weeks 

project in (your project name) and created >= Startofweek(-4) and priority = high

(I cannot remember if this next one is OOB phrase) and priority was not in (low, medium); so the filter would be:

project in (your project name) AND created >= startofweek(-4) and priority = high and priority was not in (low, medium)

--- for a static month then replace startofweek(-4) with Startofmonth()