How to sum cells when value changes in another column?

doc sum when value changes 1

When you work on Excel worksheet, sometime, you may need to sum cells based on group of data in another column. For example, here, I want to sum the orders in column B when the data changes in column A to get the following result. How could you solve this promblem in Excel?

Sum cells when value changes in another column with formula

Sum cells when value changes in another column with Kutools for Excel


arrow blue right bubble Sum cells when value changes in another column with formula

Here is a simple formula which can help you to solve this task, please do as follows:

Enter this formula: =IF(A3<>A2,SUM($B$2:B2)-SUM($C$1:C1),"") into a blank cell beside your data range that you want to sum, C2, for example, and then drag this formula down to the cells that you want to get the results, and the cells in column B have been added together based on the value changes in column A. See screenshot:

Note: In the above formula, A3, A2 are the first two cells in the column which is used to identify the cell changes, B2 is the first cell in the number column that you want to sum, C1 is the cell above your formula. You can change them to your need.

doc sum when value changes 2


arrow blue right bubble Sum cells when value changes in another column with Kutools for Excel

If you have Kutools for Excel, with its Advanced Combine Rows feature, you can quickly combine the same items and sum the corresponding cells in another column.

Kutools for Excel : with more than 300 handy Excel add-ins, free to try with no limitation in 30 days. 

After installing Kutools for Excel, please do as this:

1. In order to prevent losing the original data, you’d better make a copy of the original data.

2. Then select the data range that you want to sum based on another column when cell changes.

3. Then click Kutools > Merge & Split > Advanced Combine Rows, see screenshot:

4. In the Advanced Combine Rows dialog box, do the following operations:

(1.) Click the Produce column name which you want to sum values based on, and click Primary Key;

(2.) Click the Order column name that you want to sum, and then click Calculate > Sum;

(3.) Check My data has headers if you want to ignore the headers;

doc sum when value changes 4

5. Then click Ok button, all same items in column A are combined together and their corresponding cell values in column B are added up, see screenshot:

doc sum when value changes 5

Click Free Download Kutools for Excel Now!


The Best Office Productivity Tools

Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80%

  • Reuse: Quickly insert complex formulas, charts and anything that you have used before; Encrypt Cells with password; Create Mailing List and send emails...
  • Super Formula Bar (easily edit multiple lines of text and formula); Reading Layout (easily read and edit large numbers of cells); Paste to Filtered Range...
  • Merge Cells/Rows/Columns without losing Data; Split Cells Content; Combine Duplicate Rows/Columns... Prevent Duplicate Cells; Compare Ranges...
  • Select Duplicate or Unique Rows; Select Blank Rows (all cells are empty); Super Find and Fuzzy Find in Many Workbooks; Random Select...
  • Exact Copy Multiple Cells without changing formula reference; Auto Create References to Multiple Sheets; Insert Bullets, Check Boxes and more...
  • Extract Text, Add Text, Remove by Position, Remove Space; Create and Print Paging Subtotals; Convert Between Cells Content and Comments...
  • Super Filter (save and apply filter schemes to other sheets); Advanced Sort by month/week/day, frequency and more; Special Filter by bold, italic...
  • Combine Workbooks and WorkSheets; Merge Tables based on key columns; Split Data into Multiple Sheets; Batch Convert xls, xlsx and PDF...
  • More than 300 powerful features. Supports Office/Excel 2007-2019 and 365. Supports all languages. Easy deploying in your enterprise or organization. Full features 30-day free trial. 60-day money back guarantee.
kte tab 201905

Office Tab Brings Tabbed interface to Office, and Make Your Work Much Easier

  • Enable tabbed editing and reading in Word, Excel, PowerPoint, Publisher, Access, Visio and Project.
  • Open and create multiple documents in new tabs of the same window, rather than in new windows.
  • Increases your productivity by 50%, and reduces hundreds of mouse clicks for you every day!
officetab bottom
Say something here...
symbols left.
You are guest ( Sign Up? )
or post as a guest, but your post won't be published automatically.
Loading comment... The comment will be refreshed after 00:00.

Be the first to comment.