I have butlers assigned to guests' rooms. I need to calculate the number of rooms they have arriving, departing and those that are still 'in house'
Each guest has a membership level. (yellow, green & red as per my example)
I have worked out the formulas for the arrivals and departures but I cannot work out the 'in house' ones. Please help.
In the attached file, cells A11:G20 are fully editable. This file will be worked upon daily with people with very little excel knowledge.
Cells A1:A6 have to stay the same. Cells C3:K6 are the results I am looking for. The red columns are what I cannot work out.
Cells J12:R15 are the desired results
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