Matrix total days calculation is wrong

[rockdotnet]

need help with this issue 

[rockdotnet]

the Days per month is a measure.  Please find below and if i go to the format visual and select row subtotals. it does not sum up correctly.

Days per Month = DATEDIFF(

EOMONTH(MAX('OSR Revenue'[Billing_Period]),-1),

EOMONTH(MAX('OSR Revenue'[Billing_Period]),0),DAY)

[v-zhangti · Accepted solution]

Hi, @rockdotnet 

You can try the following methods.

Measure = CALCULATE(COUNT('Date'[Date]),ALLEXCEPT('Date','Date'[Month],'Date'[Year]))

Please check the attachment.

Best Regards,

Community Support Team _Charlotte

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[NanDeb]

What is your measure for Totals days in Month? Do you have a date table?

I would add a logical test to the measure to check if there row is a month or not and then return a different calculation when on the totals row. 

Good explanation here 

https://community.powerbi.com/t5/DAX-Commands-and-Tips/Dealing-with-Measure-Totals/td-p/63376

[ddpl]

@rockdotnet  use the "HASONEVALUE" Functon for days per month column.

or

Ref : https://www.youtube.com/watch?v=VE5Ephqk7A0