=SUMPRODUCT(--(A1:A100="pets"),C1:C100)

or

=SUMIF(A1:A100,"pets",C1:C100)

--
HTH

Bob Phillips

"BLW" wrote in message
...
Andy, I don't specifically need to use a macro so long as I can
continually
select more products and the subtotals change with the new selection. In
any
case, I would like to see how the two functions you described are use.
Thanks a lot

"Andy B" wrote:

Hi
It is possible to do this without a macro using SUMPRODUCT or SUMIF. If
you
don't specifically need a macro, post back and we'll respond for you!

Andy.

"BLW" wrote in message
...
I need help writing a macro that will look down the first column and
will
add
up the prices of whatever rows that have the same category.

Example:
category product price
pets horse 100
pets dog 50
food banana .50
food hamburger 1.50

pets subtotal: 150
food subtotal: 2.00

Thank you very much.

BLW