Regarding wieghted average

Hi
I have a requirement like this pasted below to calculcate the weighted average.
A        B      C=B*A   Wtd avg
2     300$     600$     1.92
1     200$     200$     (1250$/650$)=1.92
3     150$     450$     1.92
Overall Result:
6     650$     1250$     1.92
I am not getting the correct wtd average in my last column.I used the following expression to claculate the wtd average SUMGT 'C'/SUMGT 'B'.Would be glad if any feedback or rectifications to this.I also tried SUMCT and SUMRT and they are not working.
Regards
Bharathraj.N

Why you want a separate column ? In all the column 1.92 which is the total WA in overall result is repeating?
Or is it a mistake in your post.For Example
In the First ROw WA will be C1/B1.
In the Second Row WA will be (C1C2)/(B1B2)
In the 3rd Row WA will be (C1C2C3)/(B1B2B3) and so on ....
In this case you can try like right click the column and select Calculate as "Cumulative".
Regs
Gopi.
Message was edited by: Gopi

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Attachments:
runavg.PNG ‏5 KB

krivan wrote:
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hi
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Regarding wieghted average

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