I Need To Make A Simple Calculation

Feb 4, 2007

Hi,

I have used the Contacts template.

I want to make a simple calculation for mins remaining from sunbed courses.

So lets say one of my clients in my database was called Sally.
When I open up Sallys details screen I want it to show:
- What sunbed course she's on (inputed via details screen per course taken out)
- How many mins she's used (inputed via details screen per visit)
- How many mins remaining (calculated for us)

I don't know how to make these calculations!!!
I can not work out how to put formulas into the Contacts table.
Can anyone help me out please?

(see pic below)
http://img219.imageshack.us/img219/9760/accesssunbedzd5.jpg

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Jul 20, 2007

Well, I hope this is simple, but for some strange reason, very difficult for me.

I'm having issues setting up a calculation between 2 tables. for example:

Table1 ID Quantity


Table2 TransID Used


The "Quantity" from Table1 is a set number but the "Used" will change. all I want to do is have a Form and Report that will subtract the "Used" from Table2 from "Quantity" from Table1.

I've tried: =Table1.Quantity - Table2.Used
=Quantity - Used

what am I doing wrong? all my attempts have failed, even though I have setup a relationship between the 2 tables.

any idea?

thx

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Hiya,

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Now what I would like to happen is that if this value does not =0 then for a mesage to pop up to alert the user that they need to ammend something.

Background of database:
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Sarah :(

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Hello.

Please see attached picture for an idea on what i'm talking about. I need to achieve the following:

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What i need access to do is add a total for each agent before it shows the next agent, so the above example would change to:

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I know the problem is with the latter part of the formula (in connection with the sub-report), as if I remove this part, the rest of the calculation works fine.

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