Need Urgent Help - Average TIME Calculation differs between Excel and PowerBI

[Anonymous]

Before i go into the details, here is the sample data that i am working on.

this is swipecard data and it contains all the in's and out's of users..

https://1drv.ms/x/s!AhiQ2f7YQHC-gbNYMGJz0l0KU70svg

I am trying to calculate the spent hours of each users by calculating their differences between 

First In(MIN) and Last Out(MAX)

I have used below dax Calculated column for the Min InTime and MaxOutTime.

MinInTIME = CALCULATE(
      MIN('BaseData'[Date-Time]),
          FILTER(ALLEXCEPT('BaseData','BaseData'[EMP_ID],'BaseData'[Begin_Date]),'BaseData'[Type]="IN"))

OutTime

MAXOutTIME = CALCULATE(
      MAX('BaseData'[Date-Time]),
          FILTER(ALLEXCEPT('BaseData','BaseData'[EMP_ID],'BaseData'[Begin_Date]),'BaseData'[Type]="OUT"))

Then i have calculated the spent hours by using below dax.

Spent Hours = SWITCH(TRUE(),
    'BaseData'[MAXOutTime]=BLANK() && 'BaseData'[MinInTIME]='BaseData'[MinInTIME],BLANK(),
    'BaseData'[MinInTIME]=BLANK() &&  'BaseData'[MAXOutTime]= 'BaseData'[MAXOutTime],BLANK(),
    'BaseData'[MAXOutTime] < 'BaseData'[MinInTIME],BLANK(),
    'BaseData'[MinInTIME]='BaseData'[MinInTIME] &&  'BaseData'[MAXOutTime]= 'BaseData'[MAXOutTime],FORMAT( 'BaseData'[MAXOutTime]-'BaseData'[MinInTIME],"HH:MM"))

 I got the right values. But when i tried to calculate the average using below dax, then the issue occurs.

AvgSpendHours = FORMAT(AVERAGE('BaseData'[Spent Hours]),"HH:MM")

And the out put is

 

And then i exported it into excel and checked the values then it is giving me below value

I really dont understand why this is happening.

Is it with my DAX or PowerBI or with Excel.

Please correct me.

Thanks,

Mohan V

[v-danhe-msft]

Hi @Anonymous,

Based on my test, it could work on my side:

To find the cause as soon as possible, I would suggest you share pbix file if possible. Also you can test with our sample report on your side to see if the same issue occurs.

https://www.dropbox.com/s/6kp87yq0a9frn6o/Need%20Urgent%20Help%20-%20Average%20TIME%20Calculation%20differs%20between%20Excel%20and%20%20PowerBI.pbix?dl=0

Regards,

Daniel He

[Anonymous · Accepted solution]

@v-danhe-msft thanks for the reply.

I tried the below dax and it worked for me.

New table Dax:-

NewTable =
 ADDCOLUMNS(
    SUMMARIZE(
        Table,
        Table[EMP_ID],
        Table[BEGIN_DATE],
        Table[Emp Name]   
    ),

    "InTime", CALCULATE(MIN(Table[Date-Time]),FILTER(ALLEXCEPT(Table,Table[EMP_ID],Table[BEGIN_DATE]),
        Table[Type]="IN")),

    "OutTime",
    CALCULATE(MAX(Table[Date-Time]),FILTER(ALLEXCEPT(Table,Table[EMP_ID],Table[BEGIN_DATE]),
        Table[Type]="OUT"))
               
)

Then the output of this gives the correct values.

Thanks.

Mohan V