How to sum in this situation

[QS_User_2019]

I have a raw data like below.

Master_Column	Slave_Column_1	Salve_Column_2	Amount
Raw Material	Gold	China	100
Raw Material	Silver	Brazil	50
Raw Material	Gold	China	100
Food	Frozen Food	Russia	50
Raw Material	Gold	China	100

Now, I use a table in QS to present it like this. For the Amount_2 measure, any suggested formula I can use?

Master_Column	Slave_Column_1	Amount	Amount_2
Raw Material	Gold	100	200
Raw Material	Silver	100	100
Raw Material	Gold	100	200
Food	Frozen Food	50	50
Raw Material	Gold	100	200

I tried to write like this but some row in Amount_2 become 0 like below table.

Sum(aggr(sum([Amount]),[Master_Column]))

Master_Column	Slave_Column_1	Amount	Amount_2
Raw Material	Gold	100	200
Raw Material	Silver	100	100
Raw Material	Gold	100	0
Food	Frozen Food	50	50
Raw Material	Gold	100	0

[tresB · Accepted solution]

Using NODISTINCT should resolve the issue. Try like:

Sum(aggr(NODISTINCT sum([Amount]),[Master_Column]))

[QS_User_2019]

Thank you. You solve my question.