Often you may want to calculate a running total of values in a column in Excel that is conditional on the values in some other column.

The following example shows how to do so.

**Example: Conditional Running Total in Excel**

Suppose we have the following dataset in Excel that shows the total sales made by some company on various days:

Suppose we’d like to calculate a running total of sales that restarts on each new day.

First, we can enter the first value of sales in column C:

Next, we can use the following formula to calculate a running total of sales that restarts on each new day:

=IF(A3=A2, C2+B3, B3)

This formula checks if the current date in column A is equal to the date in the previous row.

If the dates match, then the sales from the current row is added to the sales from the previous row.

If the dates don’t match, then the sales from the current row is used as the new starting amount for sales.

The following screenshot shows how to use this formula in practice:

Column C shows the running total of sales for each day.

Notice that the running total of sales in column C restarts for each new day in column A.

**Additional Resources**

The following tutorials explain how to perform other common tasks in Excel:

How to Calculate the Sum by Group in Excel

How to Calculate a Cumulative Sum by Date in Excel