I think that goalseeker only allows you to modify one variable.
To modify more than one variable use Solver.
Solver add-in is bundled with Excel but needs to be enabled (Tools/addins)
instead of goalseek function use solver. for this you shold click
tolls-addin and see whether <solver addin> is checked. inthat case there
is a funciton<solver> in tools menu. this will be interactive and you can
do some experiments. This takes into account changes in more than in one
cell. I have not used solver except in trivial experiments. see help also.
thanks and regards
On Fri, 22 Oct 2004 18:11:02 -0700, P. Nogueira <P.