=SUMPRODUCT(C2:C6,D2:D6)/SUM(D2:D6)
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David Biddulph

Kim wrote:
Can someone please help me to find a way round my problem. Here is a
sample of


A B C D
E Product City Price Room night
H1 ROME 100.00 15
H2 LONDON 105.00 100
H3 ROME 203.00 5
H4 ROME 150.00 115
H5 LONDON 200.00 5

This is what I need.
On Column E I need the weighted average price for H1 based on room
night.

Thanks.