Date Variable Price

[tb92]

Hello, I have the following data table;

ID	Admission Date	Discharge Date	Duration	Current Cost
1	30/01/2023	02/02/2023	3
2	01/02/2023	10/02/2023	9
3	31/01/2023		45

(ID 3 Does has not been discharged yet)

I would like to calculate current cost based off (Duration * Day Rate) using the following reference table 

Start Date	End Date	Day Rate
01/01/2023	31/01/2023	5
01/02/2023	28/02/2023	10

Where Day Rate is variable, based on the Admission and Discharge Date

Could someone please help me with the appropriate DAX formula / solution to this problem? 

Thanks

[amitchandak]

@tb92 , You need a date table with start date of month and end date of month

date = Addcolumns(calendar(date(2020,01,01), date(2021,12,31) ), "Month no" , month([date])
, "Year", year([date])
, "Month Year", format([date],"mmm-yyyy")
, "Month year sort", year([date])*100 + month([date])
, "Qtr Year", format([date],"yyyy-\QQ")
, "Qtr", quarter([date])
, "Month",FORMAT([Date],"mmmm")
, "Month sort", month([DAte])
, "Is Today" ,if([Date]=TODAY(),"Today",[Date]&"")
,"Day of Year" , datediff(date(year([DAte]),1,1), [Date], day)+1
, "Month Type", Switch( True(),
eomonth([Date],0) = eomonth(Today(),-1),"Last Month" ,
eomonth([Date],0)= eomonth(Today(),0),"This Month" ,
Format([Date],"MMM-YYYY") )
,"Year Type" , Switch( True(),
year([Date])= year(Today()),"This Year" ,
year([Date])= year(Today())-1,"Last Year" ,
Format([Date],"YYYY")
)
)

then use measures given video or blog for between range

Power BI Dax Measure- Allocate data between Range: https://youtu.be/O653vwLTUzM

Power BI: HR Analytics - Employees as on Date : https://youtu.be/e6Y-l_JtCq4
https://community.powerbi.com/t5/Community-Blog/HR-Analytics-Active-Employee-Hire-and-Termination-tr...