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=sum / =ISBlank / =iferror formula needed (or some alternative)

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    =sum / =ISBlank / =iferror formula needed (or some alternative)

    Hi

    I need a formula that will calculate the increase in some figures each month. However i need it to ignore blank cells. I am using a basic =sum formula (=IFERROR(SUM(B3-A3),"")) but if there is a blank cell before the first number i am deducting it produces a minus.

    Thanks in advance
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    Re: =sum / =ISBlank / =iferror formula needed (or some alternative)

    something like that?
    =IFERROR(IF((B3-A3)<=0,"",B3-A3),"")
    Last edited by sandy666; 02-27-2016 at 04:55 AM. Reason: typo

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    Re: =sum / =ISBlank / =iferror formula needed (or some alternative)

    Perhaps = MAX((b3-a3),0) ( The SUM function you used is not necessary in this case)

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    Re: =sum / =ISBlank / =iferror formula needed (or some alternative)

    Thanks Sandy and Pepe Le Mokko. The Max formula was more consistently accurate. :-)

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    Re: =sum / =ISBlank / =iferror formula needed (or some alternative)

    You're welcome

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