this article about SharePoint views, Peter Kalmström, CEO
and Systems Designer of kalmstrom.com Business Solutions,
shows how the Totals feature can be used to summarize the
numbers of a column.
The SharePoint Total can also show other values, like average,
maximum and minimum, and you can also use it to count the
number of items in a column.
Unfortunately the Totals view can only be used in lists
with the classic interface, but it will hopefully soon be
added to modern lists also.
Enable the Totals feature for a column
Create a new view or modify an existing view.
Scroll down to Totals and click on the plus sign.
Select the value you want to calculate from the
dropdown to the right of the column that should have
In the demo below Peter shows how you can use the Totals
feature to count employees in each department. He creates
a grouped view that shows the totals per department and
then edits the page to show these totals in a web part.