Hi
profit and loss is generally determined as income - expenses
so if your income is in cell A1
your total expenses in cell A2
and you want profit / loss in cell A3 then you type in cell A3
= A1 - A2
if this isn't what you're after maybe post back with a few more details of
how your spreadsheet is set up and what you're looking for (please, however,
don't attach your spreadsheet to your post).
Cheers
JulieD