Forum Discussion

jspry's avatar
jspry
Copper Contributor
May 22, 2019

total and subtotal time

I have the need to calculate the accumulating time and then the subtotal when a value in another column changes. My example would be Column A is date/time; Column B contains one of the following "Start", "Update" and "Stop".  I need to sum the time if Column B is "Start" and "Update" and subtotal when it is "Stop" and then start the sum again on the next "Start".  Also if I get two "Start"s in a row flag the row of data and either continue the suming or give the user the choice to continue suming or force a subtotal or at least check to see if there was a missing "Stop".

Formulas and Functions

2 Replies

  • Twifoo's avatar
    Twifoo
    Silver Contributor
    May 22, 2019
    Given that you used many or’s in your explanation, please attach your sample file with desired results so that the logic thereof could be deciphered.
  • SergeiBaklan's avatar
    SergeiBaklan
    Diamond Contributor
    May 22, 2019

    jspry , for the model like this

    cumulative time could be calculated as

    =IF(($B2="Start")*NOT(   (COUNTIF($B1:B$2,"Stop")<>COUNTIF($B1:B$2,"Start"))*(COUNTIF($B1:B$2,"Start")>1)*($B2="Start")  ),0,$A2-N($A1)+N($C1))

    and Start without previous Stop highlighted with conditional formatting rule with formula

    =(COUNTIF($B1:B$2,"Stop")<>COUNTIF($B1:B$2,"Start"))*(COUNTIF($B1:B$2,"Start")>1)*($B2="Start")

    applied to the column B