Thanks David,
after upgrading my office to sp1, it's solve the problem

regards



"David Biddulph" wrote:

This was discussed at length when the problem was discovered last year.
You'll find numerous mentions on this and other Excel newsgroups. For a
more recent reference, try http://preview.tinyurl.com/6cmunr
--
David Biddulph

"tjatja" wrote in message
...
there are bugs in microsoft exel 2007 for calculation of:
154,2 x 1700 = 262.140 if the result we divide by 4 equal to 100.000 and
then if we multiply again with 4 it's back to 262.140
and also if the result (262.140) we divide by 2 and than multiply again
with
2 the result is 100.000
or:
154,2 x 1700 = 262.140 / 4 = 100.000 x 4 = 262.140 /2 = 131.070 / 2 =
100.000

any comment? or do i have to use previous microsoft exel to avoid this
bug?