excelexcel-formula
SUM of 2-way Weighted Grid in Excel
Hi friends, In the above example grid, I am looking for a formula or function that can find the sum of all Data elements with their weighted products. Below is an example pattern in terms of calculation -
Data Range: D5 : N7
Formula I am looking for is : Data (Range) * Weight A (In the same col) * Weight B (In the same row)
D5 * D4 * C5 + E5 * E4 * C5 ... + N5 * N4 * C5 +
D6 * D4 * C6 + .................+ N6 * N4 * C6 +
................................. N7 * N4 * C7
One way I know I could solve this is by calculating SUM at column and row levels and then adding them up to get a 'Grand Total'. However, I have a feeling there is a better and efficient way of solving this.
If anyone has any insights/suggestions, please help!
Solution
I think it's just
=SUM(D5:N7*D4:N4*C5:C7)
I checked the total using
=D$4*D5*$C5
and copying down and across.
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