Excel公式（如果，sumproduct…）

Question

I have this table in Excel where you can see the kg and the Price which I buy a product.

And I want to obtain the mean Price and the mean kg that I buy for each day of the week of January. For the Kg:

=AVERAGEIF($B$4:$B$11;"Friday";D$4:D$11)

But I don't know how to do this for the mean of the Price because I have to consider the kg that I have bought. I have tried with SumProduct, If, or Sumif , but I can't do it.

I know how to do it if I add a new column that makes C*D but I prefer do it without it.

Answer 1

Try this:

=SUM(IF(B4:B14="Friday",C4:C14*D4:D14))/SUM(IF(B4:B14="Friday",D4:D14))

IMPORTANT: this is an array formula and must be confirmed with Ctrl + Shift + Enter .

Answer 2

这应该工作：

=SUMPRODUCT(C4:C11,D4:D11*(B4:B11="Friday")) / CountIf(B4:B11,"Friday")