Progression Measure

Hello, 

I'm trying to build a progression matrix to see how a balance moves in time but the filters i'm using are not working.

My company has some outstanig invoices and I want to follow their days past due throughout time.
This is my data

My formula is

Measure = CALCULATE(SUM([amount]),LASTDATE([date]))

I expect my table to look like this 

But it looks like this, the values repeat each month because they passed through the range in that month

 I have tried to use different fillters but haven't figured it out 

Thank you in advanced