If you want to find the average of the last 3 numbers, you can use AVERAGE formula in excel with INDEX & MATCH functions to retrieve the output.
AVERAGE function in excel can be used to find the average value or arithmetic mean of values in a selected range of cells.
number1, number2,……number n are numeric values.They can be numbers, names or arrays of references that contain numbers.
INDEX: Returns a value or reference of the cell at the intersection of a particular row and column, in a given range.
array:Array is a range of cells or table.
row_num:The row number in the array from which to return the value.
column_num:It is optional. It is the column number in the array used to return the value.
MATCH function searches for a specified item in a selected range of cells, and then returns the relative position of that item in the range.
lookup_value: The value you want to look for
lookup_array: The table of data contains information from which you want to return the output.
match_type: 1,0 and -1 are three options.
1(Default): It will find the largest value in the range. List must be sorted in ascending order.
0: It will find an exact match
-1: It will find the smallest value in the range. List must be sorted in descending order.
Let us take an example:
We have some numbers in column A. We want a formula that will give the result as an average of the last three numbers.
In this way we can find average in excel from the last 3 values by using the combination of Average, Index and Match functions in Microsoft Excel.
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