Pulling monthly ending balance in ARM

Hello all,

How can I display the ending balance for a month instead of a year?

So lets say if the income for March is 100$ and that of April is 50$. So if I enter the 04-2025 period in my parameter the ARM report should display only 50$ instead of the total, of 150$, that it is currently displaying.

In my column set I am using the below amount type:

Tried with Ending balance as the amount type but still it shows the same figure.