How to Find Average of the Last 3 Non-zero Values in Microsoft Excel 2010

If you want to find the average of the last 3 non-zero values, you can use a combination of "AVERAGE", "IF", "ROW", &" LARGE" functions to retrieve the output.

AVERAGE function can be used to find the average value or arithmetic mean of values in a selected range of cells.

Syntax: =AVERAGE(number1,number2,...)

Arguments

number1, number2,……number n are numeric values.They can be numbers or names, arrays, of references that contain numbers.

The IF function checks if a condition you specify is TRUE or FALSE. If the condition returns TRUE then it returns preset value, and if the condition returns FALSE then it returns another preset value.

Syntax = IF(logical_test,value_if_true,value_if_false)

logical_test: Logical test will test the condition or criteria.If condition meets then it returns the preset value, and if the condition does not meet then it returnsanother preset value.

value_if_true: The value that you want to be returned if this argument returns TRUE.

value_if_false: The value that you want to be returned if this argument returns FALSE
ROW: Returns the row number of a reference.

Syntax: =ROW(reference)

Reference: It is a reference to a cell or range of cells.
LARGE: Returns the kth largest value in a data set. For example, the second largest number from a list of 10 items.

Syntax: =LARGE(array,k)

array: It is an array or range of cells in a list of data for which you want to find the kth largest value.

k: It is the kth position from largest value to return in the array or range of cells.
Let us take an example:

We have some numbers in column A.We want a formula that will give the average of last 3 non-zero values.

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  • In cell B2, the formula would be
  • {=AVERAGE(IF(ROW(A2:A10)>=LARGE(IF(A2:A10,ROW(A2:A10)),3),IF(A2:A10,A2:A10)))}
  • This is an array formula which requires formula to be enclosed with curly brackets by using CTRL + SHIFT + ENTER.

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Users are saying about us...

  1. Hi. Great tip and i want to use it but i want to use it with criteria.

    I am using tables and i want to find the average of the LAST 3 values of specific criteria.

    What will the formula be if next to the values i have text (i.e. Names)and i want to find the average of the last three numbers for each "Name"?

    The answer will be much appreciated

  2. What if i want the formula to work even if only the first cell has a number other than 0. I need it for the last 21 days. And so there will be times when there isn't 21 rows in the column that have data. but i need the formula to still give me a average of what ever is there. Hopefully that makes since.

    • if you have your 21 days in A2:A22 range then write this formula to get average of cell whose value is greater than 0
      =SUM(A2:A22)/COUNTIF(A2:A22,">0")

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