How to get -ve from +ve calculation?

[Mukesh]

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

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

 

[JLatham]

Just put a - sign in front of the word ROUND, as

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

But I'm not sure your OR statement is correct. Can you just write out how
things should work, like
If A10="buy" or A10="sell" then do this math (formula here)
but if A10 is not either buy or sell, then put a blank space there.

Reason I think the OR may be wrong is that you talk about having 1 buy and 1
sell and needing 1 and -1 results and I am thinking that you really want two
different cells referenced in it, as
=IF(AND(A10="buy",A11="sell"),ROUND(((H$3*B10)*1000*0.05)*C10,2)," ")
but I just am not certain of exactly what you are looking for.