Previous row by DAX

[MrDarian]

I need a DAX Code for calculating Previous row. points:

1. For the first one amount for each program id, it must be 100% because it has not any data before

2. Ralations: One program ID> many task ID -- One Task ID> many Sub task ID -- One task ID> one amount

3. calculate ratio based on previous row in each program ID

like image below:

Power BI File Link for download: https://gofile.io/d/oOa25R

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@Anonymous 

[harshnathani · Accepted solution]

Hi @MrDarian ,

I think there are multiple threads opened to this question.

Pleae find the solution.

RatioMeasure =

var _minsub = CALCULATE(MIN('Table'[Sub ID ]), FILTER(ALL('Table'),'Table'[PID]= MAX('Table'[PID]) && 'Table'[ID] = MAX('Table'[ID])))

var _maxsubid = CALCULATE(MIN('Table'[Amount]),FILTER(ALL('Table'),'Table'[PID]= MAX('Table'[PID]) && 'Table'[ID] = MAX('Table'[ID])-1 && 'Table'[Sub ID ] = MAXX(ALL('Table'),'Table'[Sub ID ])))

var _previousamount = CALCULATE(MAX('Table'[Amount]), FILTER(ALL('Table'),'Table'[PID]= MAX('Table'[PID])&&'Table'[ID] = MAX('Table'[ID]) && 'Table'[Sub ID ] = MAX( 'Table'[Sub ID ]) -1))

RETURN

SWITCH(

TRUE(),

MAX('Table'[Sub ID ]) = _minsub && MAX('Table'[ID]) = MINX(ALL('Table'[ID]),'Table'[ID]), DIVIDE(MAX('Table'[Amount]),MAX('Table'[Amount])),

MAX('Table'[Sub ID ]) = _minsub, DIVIDE(MAX('Table'[Amount]),_maxsubid),

DIVIDE(MAX('Table'[Amount]),_previousamount)

)

Regards,

Harsh Nathani