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Automatically look up last value in a column and calculate difference

  1. 08-31-2018, 12:01 AM #1
    shivers
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    Automatically look up last value in a column and calculate difference

    I have this in A1:

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    It works but I have to manually change it every time I add a new date in the column. How can I have it automatically calculate the difference between TODAY() and the last value in column A (so each time I add another date in a cell down the column)? So if I add a date in A4, it should now be TODAY()-A4, automatically, and so forth.

    Thank you kindly for any assistance!
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  2. 08-31-2018, 12:09 AM #2
    FlameRetired
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    Re: Automatically look up last value in a column and calculate difference

    Try
    Formula: copy to clipboard 
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    A
    1
    Litter (10)
    2
    01/25/18
    3
    08/16/18
    4
    08/20/18
    5
    6
    7
    Dave
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  3. 08-31-2018, 12:12 AM #3
    AliGW
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    Re: Automatically look up last value in a column and calculate difference

    Try this:

    ="Litter ("&TODAY()-LOOKUP(9.99999999999999E+307,A:A)&")"
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  4. 08-31-2018, 12:19 AM #4
    FlameRetired
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    Re: Automatically look up last value in a column and calculate difference

    Yup. Better.
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  5. 08-31-2018, 12:33 AM #5
    AliGW
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    Re: Automatically look up last value in a column and calculate difference

    It could look nicer, though:

    ="Litter ("&TODAY()-LOOKUP(1E+307,A:A)&")"

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  6. 08-31-2018, 12:56 AM #6
    FlameRetired
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    Re: Automatically look up last value in a column and calculate difference

    Well it does say "Litter". LOL
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  7. 08-31-2018, 11:15 AM #7
    shivers
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    Re: Automatically look up last value in a column and calculate difference

    Thank you so much that works great!
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  8. 08-31-2018, 07:16 PM #8
    FlameRetired
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    Re: Automatically look up last value in a column and calculate difference

    Thank you for the feedback and marking this thread Solved.
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