Dax measure formula

Thanks for the reply from HarshSathwara19 , Kedar_Pande  and rajendraongole1 , please allow me to provide another insight: 
Hi  nesrinehal20 ,

You can use the allselected() function to dynamically get the values after filtering.

ALLSELECTED function (DAX) - DAX | Microsoft Learn

The ALLSELECTED function gets the context that represents all rows and columns in the query, while keeping explicit filters and contexts other than row and column filters. This function can be used to obtain visual totals in queries.

Here are the steps you can follow：

1. Create measure.

Measure =
var _allsum=
SUMX(ALLSELECTED('Table'),[open time item])
return
DIVIDE(
    SUM('Table'[open time item]),_allsum)

2. Result:

Best Regards,

Liu Yang

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