Crystal Reports 11.5 Trying to average an nvarchar field

Is there a way to convert the values in the nvarchar field to a numeric value so that I can average it?

I've got a nvarchar field which was named totalincome. The values are strictly numerical and I need to generate the average total income. Any help would be greatly appreciated!
J CAsked:
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You can use the function ToNumber or Val.  

ToNumber({Your Field})

Depending on the format you may be beter off with Val.


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J CAuthor Commented:
ToNumber works. Can you also tell me...

I have another field I want to average. It is the BuyerAge field...The values look like this "(c) 25-35"

It's an age range. Is there any way that you can think of that I could average that somehow?

Thank you for your response.
WHa do you want the average to represent?

If you had 2 25-35 and 1 35-45 what would the average be and what would it really mean?

One way would be to average
    25, 25, 35 to get 85/3 = 28.3
    35, 35, 45 to get  115/3 = 38.3

so the average would be 28.3 - 38.3
Not sure how meaningful that really is.

J CAuthor Commented:
You're right, it doesn't make sense. They are asking for the average age of the person and I think what I was looking to do was to be able to show the average age range since I don't have any other data I can use in the report to represent a real Age.
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