Not sure that I understand what you are trying to achieve but if you enclose
the entire Round function in parenthesis and multiply by -1 then it should
return a negative result; unless the answer is already negative in which case
it would return a positive result.

=IF(OR(A10="buy",A10="sell"), -1*(ROUND(((H$3*B10)*1000*0.05)*C10,2))," ")

If this does not answer your question then perhaps post a little more
information including sample values for H3 and C10. Then tell us what result
you are getting and what you want the result to be.

--
Regards,

OssieMac


"Mukesh" wrote:

I need to calculate margin required for trading,
if there is 1 buy & 1 sell, I need result as 1 & -1,
for example:

cell cell
A7 buy B7 1
A9 buy B9 1
A10 sell B10 2

So far my formula in cell H10 is :
=IF(OR(A10="buy",A10="sell"),ROUND(((H$3*B10)*1000 *0.05)*C10,2)," ")

how do I make it work to give me a -ve result? please help.

Thanks.
Mukesh