It is usually easier for us to help you when you shows us what events you are working with, but in lieu of that, assuming you have events with the following fields: Work_Month_week, "work day of week...
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It is usually easier for us to help you when you shows us what events you are working with, but in lieu of that, assuming you have events with the following fields: Work_Month_week, "work day of week", "Number of work hours", you could try something like this | table Work_Month_week, "work day of week", "Number of work hours"
| eventstats count as total_week_day sum("Number of work hours") as Week_total by Work_Month_week
| eval "percent work hours"=100*'Number of work hours'/Week_total