A **cumulative percentage** represents the total percentage of values in a dataset up to a certain point.

The following step-by-step example shows how to calculate cumulative percentages in Google Sheets.

**Step 1: Enter the Data**

First, let’s create a dataset that shows the number of products that some company sells during consecutive years:

**Step 2: Calculate Cumulative Frequency**

Next, let’s use the following formula to calculate the cumulative frequency of the first row:

We can then copy and paste this formula to each remaining cell in column C:

**Step 3: Calculate Cumulative Percentage**

Next, we can use the following formula to calculate the cumulative percentage of the first row:

We can then copy and paste this formula to the remaining cells in column D:

**Step 4: Change Formatting to Percentage**

Lastly, we can highlight each of the cumulative percentage values in column D and then press **Ctrl+Shift+%** to convert the formatting to percentages:

We interpret the cumulative percentages as follows:

**5.6%**of all products were sold in year 1.**12.59%**of all products were sold in years 1 and 2 combined.**19.78%**of all products were sold in years 1, 2, and 3 combined.

And so on.

**Additional Resources**

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

How to Calculate Percent Change in Google Sheets

How to Calculate Frequencies in Google Sheets

How to Calculate Descriptive Statistics in Google Sheets