Sum of all cells within an array that have a specific column and row

I have an interesting problem, and I feel like I'm over thinking it by too much...

I need to return the sum of all values in a table that meet certain base criteria... I've attached an example.

I need to return the sum so I can average all of the numbers together. The numbers are percentages, and I want the average percentage based on these values.

In this example I want to return the Sum of all Cells that intersect with a column AND row that are = to A. Once I figure this out, I can apply it to my spreadsheet accordingly and do so for each... There are 9 potential references if that helps at all...

There is no attachment ...

Welcome to the forum. It is always nice to see a new person posting.
1. There isn't an attachment that you refer to.

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I could only get it to work by going through a helper range.

So, row-wise, each column was compressed into a single cell by AVERAGEIF, then I ran AVERAGEIF on the helper row to get the single-cell output.

(I couldn't get a clever array construction to work).

I'm just guessing here:

	A	B	C	D	E
1		A	B	C	B
2	A	25.00%	50.00%	75.00%	80.00%
3	A	80.00%	20.00%	25.00%	37.00%
4	C	50.00%	36.00%	80.00%	60.00%
5	B	21.00%	90.00%	45.00%	30.00%
6
7	A	1.05	0.7	1	1.17
8		=SUMIF($A2:$A5,$A7,B2:B5)

This will give you the sum of the values at the intersection(s) of the value specified in A7

Formula:

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If you enter A, you will get the sum of column A with both rows labelled A. If you enter B you will get the sum of the values that intersect column B and row(s) labelled B.

	A	B	C	D	E
1		A	B	C	B
2	A	25.00%	50.00%	75.00%	80.00%
3	A	80.00%	20.00%	25.00%	37.00%
4	C	50.00%	36.00%	80.00%	60.00%
5	B	21.00%	90.00%	45.00%	30.00%
6
7	A	1.05

The issue is, the rows and columns sometimes repeat in value. So, the rows could be:

A, B, C, B, B, A, C

And the Columns

A, B, C, B, A, C, E

I want a formula that will give me the sum of all the cells that are contained in a row that is labeled "B" and the Column is Labeled "B". If you apply the above values to a spreadsheet, you would get two different cells that meet the criteria of Column B and Row B, and I want to sum them. I can't do a linear sum, and VLookup only returns the value of the first instance... I want the sum of all instances (Index-Match has the same issue). I'll post a more detailed example of what I want (the actual spreadsheet I'm working on).

I want to know what the average of all cells with Row = California and Column = California, but I want to be able to do that for all 8 instances in comparison to all 8 instances... Sometimes those instances happen more than once.

Select all the cells at the intersections of the states vertically and horizontally and give them the names of the state.
Enter the name of the State interested in in A17. In B17 enter this formula:

Formula:

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You could use a lookup table R2:S9 with the names of the states in the first column and in the second column the names of the states without spaces.
The formula would then be:

Formula:

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The sums would be:

Formula:

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Formula:

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