subproductif

bonovox1

Board Regular
Joined
Aug 11, 2007
Messages
91
hi, i want to calculate the weighted average maturity of a list of contracts as at a certain date for multiple dates.

In col A, i have the day the contract started, colum b the maturity in years, and column c the amount of the contract. I want to calulcate month end weighted average maturities. Notmally i would sumproduct columns b and c and devide by the sum of C. But the condition of the date is confusing me. What is the best formula to use?
 

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You can add Date conditions to sumproduct, did you want current month only?

If you can post some sample data?
 
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