Data table Calculation from Same folder

[msarfaraz]

I have below files in a folder and would like the calculation in data as per modification date (each file has 3 column and i would need to calculate difference on data from one date to another date, example date modified from Nov 2 - 14 Nov ) any help in this matter will be appreciated. 

In below report its shows that on Nov 2 is 1340 and 14th Nov is 1670, I need to show the difference between two which is 330

[v-piga-msft]

Hi @msarfaraz,

You could have a try with the measue below.

Measure = CALCULATE(MAX('Table1'[Nights]))-CALCULATE(MIN('Table1'[Nights]))

Here is my test output.

If you still need help, please share some data sample which I could copy and make a test.

In addition, you could have a reference of the attachment. 

Best Regards,

Cherry

[msarfaraz]

Many thanks for your reply 

In my case the modified data field is file modified date, have a look the pbix file below.

https://drive.google.com/open?id=1nkByOEV_XIZ9enkZZuXNahYhTa1Drusk