measure performance teams

[Ricardo Gonzalez]

we have a group of developers who deal with Bugs, request, task, Story, etc. requests

at the beginning of the week they are assigned a group of issues to be solved (planning for the week).

I would like to see all progress at the end of the week:

from what they had assigned startofweek() to "how they finished on Friday endofweek(),

that is

how many cases were closed,
how many were left in progress stage
how many were left in "In Test" stage

i need view only a small group of developers:
"AND Assignee in (name.lastname1,name.lastname2,name.lastname3)"

I was using:
- AND issue in issueHistory() AND updated > endOfDay(-7) but the data is not correct. inaccurate

"last update" brings me updates, but

if at some point someone touches some closed case from three weeks ago for example, also it counts it as a recent update, and it's not what I need to see.
myjiraversion: 

JIRA v7.3.6