While working in Excel, you might need to calculate the average percentage change in a series of data. For example, you have an Excel worksheet with the sales number for every month of the year. Now, you want to calculate the percentage change in sales between the successive two months to find out if the business is growing or declining. Or, you can also use a specific month as the reference and calculate the average percentage change in sales between that month and other months of the year. In this tutorial, I will show you how to calculate the average percentage change in Excel.

## How to Calculate Average Percentage Change in Excel: 3 Simple Ways

Letâ€™s assume a scenario where we are working with the sales volumes of the first 6 months of the year of a shop. We have the *Month, Sales Volume, and Monthly Percentage Change* in the worksheet. Now, we will calculate the monthly average percentage change in sales between 2 consecutive months. And also calculate the change in sales between *January* and every other month. The image below shows the worksheet that we are going to work with.

**1. Calculate Average Percentage Change Using Formula**

We can use the formula for average percent change to calculate the change in sales between two consecutive months. The formula for percent change is like below.

And formula below is for calculating the average percentage change.

**Steps:**

- First, we will write the below formula in cell
**D6**to calculate the percentage changes in*Sales Volume*between the months of*January*and*February*.

`=(C6-C5)/C5 * 100`

**Formula Breakdown**

Here,

**C6** = **Sales Volume in February** = Final Value

**C5** = **Sales Volume in January** = Initial Value

**Note:**

We can not calculate the percentage change in sales for the month of

*January*as we do not have the

*Sales Volume*for the preceding month to consider it as an

*Initial Value*.

- Upon pressing
**ENTER**, we will now see the percentage change in*Sales Volume*between the months of*January*and*February*.

- Drag the
**Fill Handle**of cell**D6**to apply the formula to the rest of the cells.

- Finally, we will see the percentage change in
*Sales Volume*between each month and the preceding month.

- Select all the cells with values under the
*Monthly Percentage Change*column. Then click on the**Decrease Decimal**button several times from the**Number**under the**Home**tab. Each time we click on this button, it will decrease the decimal by one place.

- Now, we will see that each cell in the
*Monthly Percentage Change*Â is now decreased to 2 decimal points.

- Now, we will calculate the average percentage change using all the monthly percentage changes. Write down the below formula in cell
**D12**.

`=SUM(D6:D10)/COUNT(D6:D10)`

**Formula Breakdown**

- The
**SUM**function will sum upÂ all the cell values in the range**D6:D10**. - And the
**COUNT**function will count all the cells in the range**D6:D10**.

- Upon pressing
**ENTER**, we will now see the average percentage change in*Sales Volume*for all the sales volumes for the 6 months.

**Read More: **How to Calculate Percentage Increase Between Three Numbers in Excel

### 2. Apply Percent Format to Calculate Average Percentage Change

We can also use the *Percent *format to calculate the average percentage change.

**Steps:**

- First, we will click on the
**Percent Style**button several times from the**Number**under the**Home**tab. It will change our numbers into percentages.

- Then, we will write the below formula in cell
**D6**.

`=(C6-C5)/C5`

- Upon pressing
**ENTER**, we will now see the percentage change in*Sales Volume*between the months of*January*and*February*.

- Now, we will drag the fill handle of cell
**D6**to**AutoFill**the formula to the rest of the cells.

- Finally, we will see the percentage change in
*Sales Volume*between each month and the preceding month.

- Now, we will calculate the average percentage change using all the monthly percentage changes. Write down the below formula in cell
**D12**.

`=SUM(D6:D10)/COUNT(D6:D10)`

**Formula Breakdown**

- The
**SUM**function will sum up all the cell values in the range**D6:D10**. - The
**COUNT**functionÂ will count all the cells in the range**D6:D10**.

- Upon pressing
**ENTER**, we will now see the average percentage change in*Sales Volume*for all the sales volumes for the 6 months.

- Instead of calculating the percentage change in sales between two consecutive months, we can also calculate the change in sales between
*January*and every other month. - First, we will write the below formula in cell
**D6**.

`=(C6-$C$5)/$C$5`

**Formula Breakdown**

We have inserted *Dollar ($)* signsÂ in cell **C5** that represent the *Sales Volume* in the month of *January*. Inserting the *Dollar ($)* signs** **will make the cell reference absolute (**$C$5****)**. So, if we now drag the fill handle downward, the cell reference** $C$5** will not change and the formula will always calculate the change in sales between January and every other month.

- Upon pressing
**ENTER**, we will now see the average percentage change in*Sales Volume*between the month of*January*and*February*.

- Now, we will drag the fill handle of cell
**D6**to apply the formula to the rest of the cells.

- Finally, we will see the percentage change in
*Sales Volume*between*January*and every other preceding month. - We will also see the average percentage change in
*Sales Volume*for all the sales volumes of the 6 months.

**Read More: **Calculate Percentage Difference Between Two Numbers in Excel

### 3. Run a VBA Code to Calculate Average Percentage Change

If you are familiar with the **VBA** macro, then you can also use the VBA macro to calculate the average percentage change more efficiently. Just follow the below steps.

**Steps:**

- We will select
**Visual Basic**from the**Developer**. We can also press**ALT+F11**to open it.

- Now, click on the
**Insert**button and select**Module**.

- Then, write down the following code in the window that appears.

```
Sub Average_Percentage_Change()
init_cell = InputBox("Insert the First Cell Reference (Ex. B5)")
num_cells = InputBox("How many values are there in the data range? (Ex. 10)")
result_cell = InputBox("Which cell will show the result? (Ex. D12)")
Â init_cell_num = Int(Right(init_cell, 1))
init_cell_letter = Left(init_cell, 1)
final_cell_num = Int(init_cell_num) + Int(num_cells) - 2
Sum = 0
For i = init_cell_num To final_cell_num
Â Â Â Range("D" & i + 1) = (Range(init_cell_letter & i + 1) - Range(init_cell_letter & i))
Â Â Â Range("D" & i + 1) = Range("D" & i + 1) / Range(init_cell_letter & i)
Â Â Â Â Range("D" & i + 1) = Round((Range("D" & i + 1) * 100), 2)Â Â
Â Â Â Â Â Â Â Next
For i = init_cell_num To final_cell_num
Sum = Sum + Range("D" & i + 1)
Â Â Next
Range(result_cell) = Round(Sum / (num_cells - 1), 2)
Â End Sub
```

- Now, click on the
**Run**.

- A window with the prompt
*Insert the First Cell Reference (Ex. B5)*will appear. We will insert cell**C5**in the input box as it has the first*Sales Volume.*

- Another window with the prompt
*How many values are there in the data range? (Ex. 10)*will appear. - We will insert cell
**C5**in the input box as have the*Sales Volumes*for 6 months.

- Finally, the last prompt will appear which will ask you
*Which cell will show the result? (Ex. D12)*. We will insert cell**D12**in the input box.

- Then, we will see the percentage change in
*Sales Volume*between the consecutive months. - We will also see the average percentage change in
*Sales Volume*for all the sales volumes of the 6 months in cell**D12**.

**Read More: **How to Calculate Year over Year Percentage Change in Excel

**Things to Remember**

- If you do not have a
**Developer**tab, you can make it visible in**File > Option > Customize Ribbon**. - To open the
**VBA**editor press**ALT + F11**. - You can press
**ALT + F8**to bring up the**Macro**window.

**Download Practice Workbook**

Download this practice book to exercise the task while you are reading this article.

**Conclusion**

In this article, we have learned how to calculate the average percentage change in Excel. I hope from now on you can calculate the average percentage change in Excel very easily. However, if you have any queries or recommendations about this article, please leave a comment below. Have a great day!!!

**Related Articles**

- Percentage Difference Between Two Percentages in Excel

- How to Show Percentage Change in Excel Graph
- How to Calculate Percentage Change with Negative Numbers in Excel

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