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cpe11 Frequent Visitor

## Rolling Subtraction from Fixed Inventory Value

I'm attempting to get the remaining inventory function to return the total inventory from the previous month minus the forecasted sales from the previous month. October and November are correct, however December should be 168 (175 - 7). The measure I'm currently using is as follows - pMonth Sales is just a quick measure to return the previous month's sales:

```Remaining Inventory =
if([Total Inventory] > 0 , [Total Inventory],
CALCULATE(
if([Total Inventory] > 0 , [Total Inventory],
CALCULATE([Total Inventory]
,PARALLELPERIOD(FiscalDateTable[Date],-1,MONTH)) - [pMonth Sales])
,PARALLELPERIOD(FiscalDateTable[Date],-1,MONTH)) - [pMonth Sales])``` 1 ACCEPTED SOLUTION

Accepted Solutions Community Support Team

## Re: Rolling Subtraction from Fixed Inventory Value

Hi @cpe11 ,

You can add the index column using query editor firstly, and then add the measures below:

`Measure = IF(MAX('Table'[Index])=0,0,CALCULATE(MAX('Table'[Forecasted sales]),FILTER(ALL('Table'),[Index]=MAX('Table'[Index])-1)))`
`Measure 2 = 178-CALCULATE(SUMX('Table',[Measure]),FILTER(ALL('Table'),[Month]<=MAX('Table'[Month])))` Community Support Team _ Dina Ye
If this post helps, then please consider Accept it as the solution to help the other members find it more
quickly.
2 REPLIES 2 Community Support Team

## Re: Rolling Subtraction from Fixed Inventory Value

Hi @cpe11 ,

You can add the index column using query editor firstly, and then add the measures below:

`Measure = IF(MAX('Table'[Index])=0,0,CALCULATE(MAX('Table'[Forecasted sales]),FILTER(ALL('Table'),[Index]=MAX('Table'[Index])-1)))`
`Measure 2 = 178-CALCULATE(SUMX('Table',[Measure]),FILTER(ALL('Table'),[Month]<=MAX('Table'[Month])))` Community Support Team _ Dina Ye
If this post helps, then please consider Accept it as the solution to help the other members find it more
quickly. Community Support Team

## Re: Rolling Subtraction from Fixed Inventory Value

Hi @cpe11 ,

If my above post helps, could you please consider Accept it as the solution to help the other members find it more quickly. thanks!

Best regards,
Dina Ye

Community Support Team _ Dina Ye
If this post helps, then please consider Accept it as the solution to help the other members find it more
quickly.

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