Some purchasing specialist jobs also assign specialists to track the maintenance of office equipment. Maintaining records of warranties and service agreements is sometimes expected of a person in this position.
A retail price index would take this into account and use a weighted average which gives more prominence to commonly bought items. Excel does not contain a built in function to calculate a weighted average. It is however easy to do it using the SUMPRODUCT() function in a simple formula. SumProduct() multiplies two arrays (or ranges) together and returns the sum of the product. In the illustration it would calculate '(B4 x C4) + (B5 x C5) + (B6 x C6)'.
12 Responses to How to calculate weighted average in Excel. 1  how to use the same in pivot. Reply. 2  How do I calculate the weight of each item. Resource Part Schedule Production Remaining Overbuild Weight. 3  Well I find this site very useful. Reply.  please tell me how to calculate in excel(basic calculation,office accounts)