One way:

=SUMIF(A1:H1,"<0")

In article ,
Jacq wrote:

Quick question:

If I have the following numbers in a row:

5, 15, 10, -15, -22, 4, 10, -15

Is there a formula I can use for excel to only add up the negative numbers
and ignore the positives?
And is there a formula I can use to only add up the positve numbers and
ignore the negatives?

Thanks