How to sum up at a lower granularity?

I created a DAX table. The granularity of the table from low to high is Expiry_Date_Year_Month, Expiry_Member_Type, Renewal_Channel. Below is the DAX code.

I have trouble calculating the "Number_of_Record" measure. It is the number summed up at the Expiry_Member_Type level. The code I have below doesn't do that but shows the number of records at the Renewal_Channel level. 

Any ideas on aggregating the number of records at the Expiry_Member_Type please? Thank you.

MemberRenewChannel =
UNION(
summarize(
SELECTCOLUMNS(MemberRenew,
, "Expiry_Date_Year_Month", MemberRenew[Expiry_Date_Year_Month]
, "Expiry_Member_Type", MemberRenew[Expiry_Member_Type]
, "Renewal_Channel", MemberRenew[Renewal_Channel]
),
[Expiry_Date_Year_Month], [Expiry_Member_Type], [Renewal_Channel]
, "Measure", "Renewal"
, "Value", SUM(MemberRenew[Renewal])
), -- Renewal
summarize(
SELECTCOLUMNS(MemberRenew,
, "Expiry_Date_Year_Month", MemberRenew[Expiry_Date_Year_Month]
, "Expiry_Member_Type", MemberRenew[Expiry_Member_Type]
, "Renewal_Channel", MemberRenew[Renewal_Channel]
),
[Expiry_Date_Year_Month], [Expiry_Member_Type], [Renewal_Channel]
, "Measure", "Number_of_Record"
, "Value", calculate(sum(MemberRenew[Renewal]), all(MemberRenew[Expiry_Date_Year_Month], MemberRenew[Expiry_Member_Type] ) )

) -- Number_of_Record
) -- union