Problem ABC Ranking by Month

[#1]

Hello,

I've attached a sample so that people that have a idea could take a look at it. As you can see the ABC ranking works fine over the complete selection. What i would like to achieve finally is that in the lowest graph i can see the Weight op the top 3 product on the monthly total for each month. Month by month this works fine, but not by month ...

Kind Regards .....

[hectorgarcia]

please find a solution at script level