Calculating a Line of Balance (Running Totals)

[Jtbonner1986]

Hi All, 

I have a problem i have run into when trying to create a running total of "line of balance" (LoB) 

The calcualtion for month 1 is ([total stock] + [purchases]) - [usage].

Then the following month the calculation will use the previous months output and then calculate the current months purchases - the current month usage

hope this makes sense? 

I have 3 tables (Stock, Purchases, Usage) and what i want to do is create a running Line Of Balance visual in power BI;

Stock;

Material	Stock on Hand
A	100
B	500
C	1000

Purchases

Material	PurchDate	Quantity
A	01/01/2023	10
A	01/02/2023	20
B	01/01/2023	10
B	01/02/2023	20
C	01/01/2023	10
C	01/02/2023	20

Usage

Material	UseageDate	Quantity
A	01/01/2023	50
A	01/02/2023	10
B	01/01/2023	100
B	01/02/2023	10
C	01/01/2023	300
C	01/02/2023	20

what i want to do is create a table within power bi that outputs a visual with a running total calculated like the below. I have a calendar table already created:

Material	01/01/2023	01/02/2023
A	60	70
B	410	420
C	710	710
	(Stock on hand + Purch) - Usage	(Previous month LoB + Purchases) - usage

hope you can help

many thanks,

J

[Jtbonner1986]

Hi

Thanks so much for the response. So sorry it has taken me this long to reply. Sickness and other things have gotten in the way 

Okay, so the example file is exactly what i want. 

However when applying this to my dataset the results are not coming back as expected. I am not sure if this is because of the dates where there is no 'usage' or 'demand' and the calcualtion the resets to the original 'stock on hand'?

Any help is grately appreciated

Many thanks,

Josh

[v-yiruan-msft · Accepted solution]

Hi @Jtbonner1986 ,

I created a sample pbix file(see the attachment), please check if that is what you want.

Measure = 
VAR _selmatrial =
    SELECTEDVALUE ( 'Stock'[Material] )
VAR _seldate =
    SELECTEDVALUE ( 'Calendar'[Date] )
VAR _stock =
    SUM ( 'Stock'[Stock on Hand] )
VAR _purchase =
    CALCULATE (
        SUM ( 'Purchases'[Quantity] ),
        FILTER ( 'Purchases', 'Purchases'[PurchDate] = _seldate )
    )
VAR _usage =
    CALCULATE (
        SUM ( 'Usage'[Quantity] ),
        FILTER ( 'Usage', 'Usage'[UseageDate] = _seldate )
    )
VAR _prempurchase =
    CALCULATE (
        SUM ( 'Purchases'[Quantity] ),
        FILTER (
            'Purchases',
            YEAR ( 'Purchases'[PurchDate] )
                = YEAR ( _seldate - 1 )
                && MONTH ( 'Purchases'[PurchDate] )
                    = MONTH ( _seldate - 1 )
        )
    )
VAR _premusage =
    CALCULATE (
        SUM ( 'Usage'[Quantity] ),
        FILTER (
            'Usage',
            YEAR ( 'Usage'[UseageDate] )
                = YEAR ( _seldate - 1 )
                && MONTH ( 'Usage'[UseageDate] )
                    = MONTH ( _seldate - 1 )
        )
    )
RETURN
    _stock + _purchase - ( _premusage - _prempurchase ) - _usage

If the above ones can't help you, could you please provide some raw data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples? By the way, what kind of conditions are needed for different background colors? It would be helpful to find out the solution. You can refer the following links to share the required info:

How to provide sample data in the Power BI Forum

How to Get Your Question Answered Quickly

And It is better if you can share a simplified pbix file. You can refer the following link to upload the file to the community. Thank you.

How to upload PBI in Community

Best Regards