thank you both, you were right. now i can sleep.

"Biff" wrote:

Hi!

Are the values in either A1 or B1 calculated?

I suspect a rounding issue where the displayed value is not the true
underlying value.. Try this and see what you get:

=PRODUCT(ROUND(A1,0),ROUND(B1,2))

Biff

"Kat and the Calculator"
wrote in message ...
When I enter an equation in c1 such as: =product(a1,b1), when a1 is 1000
and
b1 is .10, the answer in c1 should be 100, but it comes out to 102.04.
Why?
please help.
Thank you,
Kat