Matrix reports in Workday allow grouping of data, applying summarizations, and drilling into the summaries for deeper analysis . To calculate percentages relative to the overall total, Workday provides a built-in summarization option called ''Percent of Overall Total.'' This option is applied to numeric summarizations like ''Number of Hires.''

From the Workday Reporting Guide:

''Matrix reports allow you to group data, summarize the metrics for each grouping, and drill into the summarizations for further analysis.''

''You can apply different summarizations such as Count, Sum, Average, and Percent of Overall Total on numeric fields.'' (Matrix Report Options -- Workday Module 1 Binder)

Therefore, to show the percentage of hires per recruiter relative to the grand total across recruiters and regions, you would select ''Percent of Overall Total'' on the Number of Hires summarization.