Create unit cost reports in Hyperion Financial Reporting

Question

Hi,
I have some doubts regarding the creation of "per unit" reports in Hyperion Financial Reporting. In the business model we have:
- different cost and revenue groups (identified by accounts dimension)
- different business channels (identified by business channel dimension)
- units different for each business channel (identified by accounts dimension and by currency dimension)
What would be the most efficient way to easily construct per unit reporting? Reporting should be able to show data as:
(*in principle, the "$ per unit" column is the most important one. The other columns could be hidden without problem)
(**the main challenge is to be able to easily reflect per unit values calculated with different units, depending on the business channel and potentially other dimensions)
More precisely, the questions are:
1. What should be the dimensions structure? Units in separate dimension? Or inside accounts dimension and differentiate with currency dimension?
2. The calculation of per unit amounts should be done within the reporting or should it be precalculated value?
2a. If within reporting - how to technically include this calculations? Show $ and units and then use the formula?
2b. If precalculated - how to solve the problem that the TOTAL per unit values are not the sum of per unit values for each Business channel separately (as each Business channel has its per unit calculated only with the units of this Business channel)? (please take into account that Business channel may not be the only dimension that changes the units to be used in per unit calculation - we can also have different units for different cost centers etc.)
3. How to show $ and units separately, as in the example, if, when limiting a row by Revenue, for example, is making the units value for this row 0? How to overcome this?
Many thanks in advance for your help and best regards,
Pawel

Answer 1

I came up with one concept of how to deal with this problem - let me know what you think. The idea is pictured in the image below:
The answers to the 3 questions using this solution would be:
1. What should be the dimensions structure? Units in separate dimension? Or inside accounts dimension and differentiate with currency dimension?
Units would be a separate account in the "accounts" dimension. But also, units could be differentiated by the "currency" dimension.
2. The calculation of per unit amounts should be done within the reporting or should it be precalculated value?
2a. If within reporting - how to technically include this calculations? Show $ and units and then use the formula?
Withing the reporting, as I have no solution to precalculate per unit values using so many different groups of units - if we want to have different per unit per each business channel or cost center etc. I understand we would need that many different precalculated "per unit" values, which would be a lot...
Regarding 2a, a simple formula would do (box C). However, for rows with auto totals, the formula would need to have priority over the autototals (box D) - how is that done? Is it possible and easy?
3. How to show $ and units separately, as in the example, if, when limiting a row by Revenue, for example, is making the units value for this row 0? How to overcome this?
As we can differenciate units using both accounts and currency dimension, with the accounts placed in rows, the elements selected would always include the units (box A). Then, in the columns, using "currency" you would choose whether to show the cost and revenue accounts ($) or units (box B). Like this you would not get 0 in units, neither you would distort $ amounts.
What is your opinion? Best regards!