Hi @Yousef_Alshaikh 
and Welcome to the Community 
!
There’s an “old trick” for that which has its limitations but does the job …
In the table you use to store the datas of your pie chart, you can add a text column called Label (or whatever you want) and then add a Concatenate() formula (or Format()) to create a label (
) with the desired info you wish to display next to each segment of the pie chart .
Then, in the Options of the pie chart you can select that new column as Category and the pie chart will display what’s in the Label column instead of probably just what’s is set as the Display column in the table
As you’ll see in the sample below, my “Label” column is here called [Name + %] and the formula in that column is simply this one :
Concatenate(thisRow.Name," | ",thisRow.[A Percent])
(See the table below the pie chart in the sample )
Now that we have Canvas Columns, maybe something like this could help you display the chart and in a column on the canvas next to it, a table where only the important datas concerning the chart are listed
(This will probably look better in its own tab than here )
Those are just very quick samples and ideas … But I hope this helps