How to group customers dynamically based on slicer values

SravaniG 

Create a table using the "Enter data" option in the Home ribbon and type in the groups (let's call it 'Grouping Table'):

Group       Order

Top 4           1

Top 5-8.       2

Top 9-10      3

(Use the order field to sort the table: select the column Group and use the "Sort column by" option in table view)

You can use this table as a slicer if need be.

Next create a measure including the grouping values:

Grouping Values= 

VAR Top4 = CALCULATE([Revenue], FILTER(Table,  [Rank] < 5))

VAR Top5to8 = CALCULATE([Revenue], FILTER(Table, [Rank] > 4 && [Rank] < 9))

VAR Top9to10 = CALCULATE([Revenue], FILTER(Table, [Rank]>8 && [Rank] <11))

RETURN

Switch(TRUE(),

Grouping Table [Group] = "Top 4", Top4,

Grouping Table[Group] = "Top 5-8", Top5to8,

Top9to10)

now create a table visual with the Grouping Table[Group] field and the [Grouping Values] measure