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Time Intelligence : YoY Closing Balance Look with drilldown on date hierarchy

Have a simple table like a date and amount. The amount is NOT purchase activity but a mortgage ENDING BALANCE. hence if I sum it across time periods we will get values that are not true ending balance.


My objective 

- show ending balance and its sameperiodlastyear() balance

- along with drill down behaviour by year and month


THe problem is 

1. how do you calculate the ending balance where my context could be month or year in teh same report.

2. if im in monthly timescale, the ending balance should be based on monthly value

3. if im in yearly timescale, they should be ending balance based on yearly value




Microsoft Employee
Microsoft Employee


Firstly, in your original table, create the following measures.

ClosingBalanceYear = CLOSINGBALANCEYEAR( SUM( Table[amount]), Table[date])
ClosingBalanceMonth = CLOSINGBALANCEMONTH( SUM( Table[amount]), Table[date])

Then create the following columns.
Year = YEAR(Table[date])
Month = MONTH(Table[date])

Secondly, create a new table using DAX below.

BalanceForYear = SUMMARIZE(Table,Table[Year],"YearBalance",[ClosingBalanceYear])

Then create the following columns in the new table.

Index = CALCULATE(COUNT('BalanceForYear'[Year]),ALL('BalanceForYear'),FILTER('BalanceForYear','BalanceForYear'[Year]<=EARLIER('BalanceForYear'[Year])))

Previous year = IF('BalanceForYear'[Index]=1,'BalanceForYear'[YearBalance],LOOKUPVALUE('BalanceForYear'[YearBalance],'BalanceForYear'[Index],'BalanceForYear'[Index]-1))

YOY = 'BalanceForYear'[YearBalance]-IF('BalanceForYear'[Index]=1,'BalanceForYear'[YearBalance],LOOKUPVALUE('BalanceForYear'[YearBalance],'BalanceForYear'[Index],'BalanceForYear'[Index]-1))


Thirdly, create another new table using  the following DAX.
Balance for month = SUMMARIZE(Table,Table[Year],Table[Month],"MonthBalance",[ClosingBalanceMonth])


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

Appreciate your response. Will try to understand the logic for each of your steps. Looks like you are an expert with DAX. I want to ask a follow up question. I can use CALCULATE function well but I am sure there is grey area in my understandng. I am confused on the arguments and return types for Filters in CALCULATE function. I understand the way the contexts are changed. But I want to understand the arguments and return types procesing.


Can you give me a good reference which explains CALCULATE function in a simplistic manner? Or your explanation if you have time?


You can refer to the following blogs to learn more about Calculate function.


Community Support Team _ Lydia Zhang
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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