Percent of Month Based on Custom Week Ranges

[Anonymous]

Hello,

I have a data table that uses pre-determined weeks to create invoice totals. For example, Week 1 of January is Jan 1.-Jan 6. Week 2 is Jan6.-Jan13th etc. I need to create a measure (using a live dataset) that says something like since week 1 is only 5 days, 5/31 = 16% of that month. It should look something like (note I don't currently have a field like "Dayrange"):

Invoice Weeks	Percent of Month	Dayrange	Invoice	ID
1	16%	5	$123123.123	1
2	23%	7	$123.123	2
3	23%	7	$123123123123.123	3

[amitchandak]

Is there way to know start and end date of week. then

datediff([start_of_week],[end_of_week],day)/day(eomonth([end_of_week]))

[Anonymous]

@amitchandak 

I was trying to avoid that solution as I have no way of finding the start and end date for each week. Although week 1 runs from Jan 1. -Jan 5. that doesn't mean that we received invoices every day in that range. In my case I only have invoices on the 3rd of January making that a bad method to find the start/end date. 

[v-lili6-msft]

hi  @Anonymous 

For your case, you must define the dim date in advance, for example:

Week

Start Date

End Date

Then use this to calculate the Dayrange.

Regards,

Lin