Hours in Status formula check

After a lot of testing and reading, I’ve gotten my report to find the number of days in a set of statuses down to this calculated measure:

[Measure].[Team Work] =

 (
  [Measures].[Days in transition status],
  [Issue Type].[Advisement],
  [Transition Status].[Ready for Review]
 )
 +
 (
  [Measures].[Days in transition status],
  [Issue Type].[Advisement],
  [Transition Status].[In Progress]
 )

Format: #,### h

It seems to calculate quickly and appears to be mapping for the time paging

The numbers are almost what I get from tedious manual checks in JIRA. But, the numbers don’t seem to align exactly.

Is the above an accurate and efficient means to getting?