Creating a rolling sum function

stugale

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Joined
Feb 25, 2015
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Hi everyone,I am trying to create a spread sheet that adds up my staff's hours worked for a rolling 119 day period, sounds easy but I have to ignore any day that they have taken as leave but still include a 119 day period. For example if I had a member of staff who took 6 days off in that 119 day period I would need to add in the extra 6 days at the end, so I would need a 125 day period to be calculated.Is this possible? At the moment I have the rolling 119 day sum and a countif to tell me how many days leave (input as L) and then I manually add the extra cells to the formula. So my formula reads =SUM(C2:DQ2)+SUM(DR2:DW2) as my employee has taken 6 days leave. Many ThanksStu
 

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I have the leave count in row 3, so I have a rolling 119 day period of leave as well, but I'm not sure how to automatically adjust the formula to include the extra days. I have 45 members of staff so I'm looking for a way to automatically calculate the rolling number of hours worked rather than having the simple total and having to manually adjust the formula for every leave day.
 
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Dummy example of what I'm trying to achieve -

Staff #Name01-Jul02-Jul03-Jul04-Jul05-Jul
1Jones10100L10

<tbody>
</tbody>

say I need to calculate a 4 day rolling sum of hours Jones would be 20 hours but because he had a leave day I need to do a 5 day rolling sum to account for his leave day. Therefore his total would be 30 hours. I need to expand this to cover 119 day period so not as easy as just looking and amending.

Thank You
 
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