I just checked if I am crazy :), created the report and both ways gave exactly the same (right) result.
:)

>I figured out the problem. Doh! I forgot to take the calculations of the report fields when I changed the expressions to the report variables.
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>Thanks,
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>Michelle
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>>>Am I confused as to what report variables do?
>>>
>>>I have a variable, "totamt". The initial value is 0, the value to store is "amount", the calculation is sum, and it releases at the end of the report.
>>>
>>>I thought this would give me the same result as a field at the end of report with the expression "amount" and the calculation of sum.
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>>>But instead it is giving me a huge number and I don't know where it's getting it from.
>>>
>>>So how do I get a report variable to give me the total amount?
>>>
>>>Thanks,
>>>
>>>Michelle
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>>Michelle, try to set calculation to None and Value To store to
>>totamt + amount
>>
>>Nick