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formula for quantities

  1. #1
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    formula for quantities

    We provide customers a range of 4+tems, with quantities against each one. the charge is £33.00 per 20 items & then £1.10 per item over and above this price.

    Item 1 = 13 Item 2 = 14 Item 3 = 6 Item 4 = 8

    Total items quantity = 41 items

    21 @ £1.10 = £23.10 + £33.00 = £56.10

    I've tried doing it by totalling the items and then minusing 20, but if there are less than 20 items, this doesn't work, as it gives a negative.

    Help?
    Last edited by kayjohnson; 07-07-2008 at 10:20 AM.

  2. #2
    Forum Contributor EdMac's Avatar
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    Like this

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  3. #3
    Forum Expert shg's Avatar
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    I don't think you want to use modulo.

    =33 + 1.1 * MAX(0, C14-20)

  4. #4
    Forum Contributor EdMac's Avatar
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    Rylo

    Ooops, I think you're right!

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