Count Double Entries in a Table

[Daniel1908]

Hello Together, 

I am using the below expression. 

=Count(distinct{$-1<Material>} If([Price]>1,1,0))

I want to count the material where the equal price appears more than once in the list. 

Thanks for your help. 

Kind Regards, 
Daniel

[Kushal_Chawda]

@Daniel1908  try below. If doesn't worl share sample data with expected output.

= count(if(aggr(count(Price),Material,Price) > 1 , Material))