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how to calculate a weighted average in excel. Calculating the weighted average when the weights add up to 100. 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.
However you can easily create your own Excel weighted average formula using the Excel Sumproduct and Sum functions. First of all sumproduct will calculate the product of price and quantity for the all the products return the sum of all those. To calculate a weighted average in Excel simply use SUMPRODUCT and SUM.
First the AVERAGE function below calculates the normal average of three scores.
9101 65015 8002 73025 6803 010150202503735. To calculate the weighted average of a data with a Pivot Table we can add a column to our source data as an intermediate calculation. Calculating the weighted average when the weights add up to 100. Follow these steps to calculate weighted average.