Calculate Weighted Average COGS with set analysis based on range date

[eddykwan_]

Hi everyone,

Please help me to calculate COGS with range date. I dont know how to input the set analysis or expression.

the formula excel is available at File excel and I give the qvf file to try the set analysis.

Please help me to find this solution...

Thank you

[eddykwan_]

@sunny_talwar