determining variance in percentages
John was in school for 23 out of 30 days last month, which means he was in
school 76.66% of the days. We expected him to be in school for 28 days, or 93.33% of the days. How do I calculate the variance in the percentages? |
determining variance in percentages
Try this
=(A2/B2)/(C2/B2) Format as % Where A2= actual attendance - 23 B2= Max attendance - 30 C2= optimum attandance - 28 Mike "emaypsu" wrote: John was in school for 23 out of 30 days last month, which means he was in school 76.66% of the days. We expected him to be in school for 28 days, or 93.33% of the days. How do I calculate the variance in the percentages? |
determining variance in percentages
How about this scenario?
attended 23 days out of expected 30, for 76% projected 25 days out of expected 28 for 89% does your formula differ? "Mike H" wrote: Try this =(A2/B2)/(C2/B2) Format as % Where A2= actual attendance - 23 B2= Max attendance - 30 C2= optimum attandance - 28 Mike "emaypsu" wrote: John was in school for 23 out of 30 days last month, which means he was in school 76.66% of the days. We expected him to be in school for 28 days, or 93.33% of the days. How do I calculate the variance in the percentages? |
determining variance in percentages
Hi,
No it doesnt. I have to confess I don't understand the reasoning that gives 100% attendance score if attendance is only 28 out of 30 days but that's your logic not mine. Mike "emaypsu" wrote: How about this scenario? attended 23 days out of expected 30, for 76% projected 25 days out of expected 28 for 89% does your formula differ? "Mike H" wrote: Try this =(A2/B2)/(C2/B2) Format as % Where A2= actual attendance - 23 B2= Max attendance - 30 C2= optimum attandance - 28 Mike "emaypsu" wrote: John was in school for 23 out of 30 days last month, which means he was in school 76.66% of the days. We expected him to be in school for 28 days, or 93.33% of the days. How do I calculate the variance in the percentages? |
determining variance in percentages
Thanks. I was using this scenario to apply it to what I was actually
calculating. I appreciate your help. -- Elaine "Mike H" wrote: Hi, No it doesnt. I have to confess I don't understand the reasoning that gives 100% attendance score if attendance is only 28 out of 30 days but that's your logic not mine. Mike "emaypsu" wrote: How about this scenario? attended 23 days out of expected 30, for 76% projected 25 days out of expected 28 for 89% does your formula differ? "Mike H" wrote: Try this =(A2/B2)/(C2/B2) Format as % Where A2= actual attendance - 23 B2= Max attendance - 30 C2= optimum attandance - 28 Mike "emaypsu" wrote: John was in school for 23 out of 30 days last month, which means he was in school 76.66% of the days. We expected him to be in school for 28 days, or 93.33% of the days. How do I calculate the variance in the percentages? |
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