In the OLAP cube I want to calculate from work, the number of FTEs the work requires. I would do this by dividing total work for a month by (let's say for example) 172 hours ...that would give me the number of employees I need for that given month. But more accurately, I would want to divide by the real work hours in that particular month and would need a table to store the right denominator, because it changes each month, based on the work calendar...but is very predictable. once the table is established, with the right hours for each month, the division is simple. But how does one set that up in OLAP cube? 172 works for now...but it is not precise enough. Any suggestions? Thanks in advance.