Formulas behind Delivered Fields

Summary

Looking for documentation on delivered fields like '# Candidates Currently in Review"

Content

This is a specific question, but i'm looking for general information on the formulas, filters, calculations behind a number of delivered fields in reporting.

In the attached examples, i'm pulling 1.) # of Submissions currently New and 2.) # of Submissions Currently in Review, but i'm unable to reproduce these counts by pulling steps/status.

I know this is because 1.) factors out Rejected, Declined, etc - but in order to explain the counts to the business i need to be able to explicitly state (and recreate with candidate rows) the counts.