The following article introduces you to the GROWTH function - one of the functions in the statistical function group is very popular in Excel.

Description: The function calculates the exponential growth value using existing data.

 Syntax: GROWTH (known_y's, [known_x's], [new_x's], [const])

Inside:

- known_y's : The set of known y values ​​in the relationship y = b * m ^ x, is a required parameter.

+ If known_y's is in a single column or row -> each known_y's column or row is interpreted as a separate variable.

- known_x's: The set of known x values ​​in the relationship y = b * m ^ x, is a required parameter.

+ known_x's may include 1 or more sets of variables.

+ If known_x's is omitted -> it is assumed to be an array of the same size as known_y's

- new_x's:  Are the new x values ​​that you want the function to return the values ​​corresponding to the values ​​of y.

+ new_x's must include a column (row) for each independent variable.

+ If new_x's is omitted -> it is assumed to be the same as known_x's.

+ If known_x's and new_x's are omitted -> it is assumed to be the same as known_y's size .

- const: The logical value determining the value of the constant b, is an optional value including the following values:

+ const = True or ignore -> b is calculated normally.

+ const = False or ignore -> b = 1 and m are adjusted such that: y = m ^ x.

Attention:

- The value of the returned formulas has the array formula type -> the function must be entered as an array formula.

- When entering values ​​for an argument with the following convention:

+ Use commas to separate values ​​in the same row.

+ Use semicolons separating between rows together.

For example:

Calculate the estimated revenue for the 6th and 7th months based on the previous sales month in the data table below:

- Calculate the expected revenue of the 6th month. In the cell to calculate enter the formula : = GROWTH (D6: D10, C6: C10, C11: C12)

- Press Enter -> predicted revenue of the 6th month is:

- Calculate the predicted revenue of the 7th month. In the cell to enter the formula : = GROWTH (D6: D11, C6: C11, C12)

- Press Enter -> predicted revenue of the 7th month is:

Above are instructions and some specific examples when using GROWTH function in Excel.

Good luck!

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