Calculating plan accuracy, circular reference

[bidgeir]

Hi all

I´m trying to calculate plan accuracy where I can "use" orders from +-1 week to fulfill the plan. As you can see in the image below I have 13 weeks. In those 13 weeks I have plan in column C and orders in column B. Columns A, B and C are my data, the rest is what I want to calculate. In column E I have calculated the Orders +-1 week but taking into account if there are any leftover from previous period. The problem is that the leftover are reliant on Orders +-1 week. This is possible in Excel because in the Orders +-1 week (column E) I reference leftover (column F) from the row above. So the leftover formula for line 3 is E3-C3 and the Orders +-1 week for line 3 is B4+IF(F2>SUM(B2:B3),SUM(B2:B3),IF(F2>0,F2,0)). 

In Power BI it´s not possible to reference a column/measure that relies on the source column/measure. 

The goal are column G, H and I using only columns A, B and C. So my main goal is column H line 15 (the total accuracy) but I would like to calculate accuracy pr. line and covered batches as well. 

The datasource is not Excel and not in this exact format but it´s reprecentative of the data source.

If anyone has an idea about how to go on about solving this in Power BI I would be very greatful. I don´t care if the solution is in Power Query or DAX. You can download the Excel file with this example and another one here: https://tinyurl.com/4b55kaxh  

I have just fiddled a little with it in Power BI so I don´t have any PBIX to share. 

/Ásgeir

[bertalan_ronai]

Hi!

I tried a measure. Check out my file please. https://datascientistbudapestcom-my.sharepoint.com/:u:/g/personal/bertalan_datascientistbudapest_com...

[bidgeir]

Good try but unfortunately not what I need. I have come to the conclusion that it´s not possible (at least with my knowledge) so I´m not going to calculate it in this way. I going for a less accurate but good enough method of looking at the total period instead of focusing on each week.

[bidgeir]

I have created a PBIX with the Excel imported if anyone prefers not to import then Excel data. You can find the PBIX here: https://tinyurl.com/yutx7st9 

[bertalan_ronai]

Hi!

If you don't reference a measure but use the same DAX in the other measure as a variable then it might solve the referencing problem. I do admit it is just a quick guess on my part.

[bidgeir]

I simple cannot see how that is possible. The calculation for one use the other one and vice versa. But maybe I´m just blocked in my mind after looking at it from a certain point of view for too long