Generally, SUMPRODUCT is used like this to get a weighted average:

=SUMPRODUCT(RangeWithScores,RangeWithWeights)/SUM(RangeWithWeights)

If you just ahve two cells, and make your weights percentages so that they
add up to 100%, then you could use

=Score1*Weight1 + Score2*Weight2

HTH,
Bernie
MS Excel MVP




"Otyokwa" wrote in message
...
In my spread sheet I have an average test grade and an average homework
grade
and would like to get an average grade from the two. However I would like
the test grade to have more weight. I think I am supposed to use
sumproduct
but I am not sure how. Thank you for your help.