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how to calculate weighted average formula in excel. There is no built-in formula in Excel to calculate weighted averages. Select cell C7 to make it the active cell this is the location where the students final mark will display.
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First the AVERAGE function below calculates the normal average of three scores. Below you can find the corresponding weights of the scores. First of all sumproduct will calculate the product of price and quantity for the all the products return the sum of all those.
The basic formula for a weighted average where the weights add up to 1 is x1 w1 x2 w2 x3 w3 and so on where x is each number in your set and w is the corresponding weighting factor.
Finally in cell E2 input the formula B2D2 B3D3 to. You can use SUMPRODUCT formula. Weighted average v1 x w1 v2 x w2 v3 x w3w1w2w3. There is no built-in function that will automatically calculate a weighted average in Excel.
