Adding Total fields to a database

I may be being totally stupid but having worked in Paradox for a number of years, I was able to add to a form a summary field for numberic fields.  I cannot find a component to do this in Delphi.(or am I missing something) I have been able to achive the same result with code, but thought  there may be an easier way.

I have not been using delphi for very long and would appreciate aome help.