Crystal Report displaying formula result as 00 - crystal-reports-2010

Question

First of all I would like to apologize if this has been asked before, I just couldn't find the answer.
To the point:
My problem is as follows: I am using Crystal Reports for VS2010 and I have a field that should dispaly 1 or -1 based on an If check
If IsNull ({Orders.OrderReplacedBy})
Then 1
Else -1
It should display in my report 1 for null values of the field and -1 otherwise. Problem is that in my report I get only .00 no matter the value of the if test.
Furthermore I have another formula field that does of a sum of all the 1s and -1s showed on the report, and it seems to be working a little weird. In my database I have 772 total rows, of which 39 are NULL (so there should be 733 1s and 39 -1s with a sum of 694) and the displayed sum is 488. The code for the sum is as follows:
Sum({#N})
where N is the field where I calculate the 1s and -1s.
What I've tried so far:
changed the If test from IsNull to ToText({Orders.OrderReplacedBy})=""
changed the If test to {Orders.OrderReplacedBy}>0 as the OrderReplacedBy field in the database is numeric and there cannot be values less than zero, so the NULLs should just trigger the Else.
trid to change the display of the formula to "1" and ToNumber("1") nothing seems to work
I honestly have no more ideas of what else to try and I also have no knowledge of Crystal Reports (I am only working with it for 2 days and just need to modify a report on an existing app).
Any help would be appreciated,
Thanks :)
P.S.: I am working with Silverlight 4

Answer 1

Since no one answered I presume that this hasn't happened to anyone or isn't of much interest. But after doing some more research and trying out other stuff I've found a workaroud that I'll post (maybe someone else bumps to this, who knows?):
In the N formula (I don't know why it didn't work the last time I tried) I changed things like this:
If IsNull({Orders.OrderReplacedBy})
Then "1"
Else "-1"
Added a new formula that isn't used on the report called Numbers
If {#N}="1"
Then 1
Else -1
And then I changed the sum formula to match the intermediate field
Sum({#Numbers})
I still don't know the reason why the report didn't want to show me the numbers in the N formula, nor why the sum formula didn't calculate the correct sum.
I hope this is at least going to be useful to someone else,
Cheers!