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#1
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Calculate Average for same period last year
I need to calculate the average rate both Year To Date and for the same
period last year. I have two rows of data. Row 1 shows Current Year average rates per month (all zeros after previous month; ie April - December are currently zero) Row 2 shows Last Year average rates per month (all months have positive values). I've used the formula =SUM(C35:N35)/(COUNTIF(C35:N35,"<0")) to get the average rate for the Current Year but, I also want to be able to automatically calculate the average rate for the same period last year (ie Jan - March only in this example). |
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#2
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Calculate Average for same period last year
Try this
=SUM(IF(C35:N35<0,C36:N36,0),0)/(COUNTIF(C35:N35,"<0")) It's an array so enter with CTRL+Shift+Enter. I have assumed last yesr is one row down from this year. Mike "irish_hp" wrote: I need to calculate the average rate both Year To Date and for the same period last year. I have two rows of data. Row 1 shows Current Year average rates per month (all zeros after previous month; ie April - December are currently zero) Row 2 shows Last Year average rates per month (all months have positive values). I've used the formula =SUM(C35:N35)/(COUNTIF(C35:N35,"<0")) to get the average rate for the Current Year but, I also want to be able to automatically calculate the average rate for the same period last year (ie Jan - March only in this example). |
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#3
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Calculate Average for same period last year
Thanks Mike H, that works perfectly.
"Mike H" wrote: Try this =SUM(IF(C35:N35<0,C36:N36,0),0)/(COUNTIF(C35:N35,"<0")) It's an array so enter with CTRL+Shift+Enter. I have assumed last yesr is one row down from this year. Mike "irish_hp" wrote: I need to calculate the average rate both Year To Date and for the same period last year. I have two rows of data. Row 1 shows Current Year average rates per month (all zeros after previous month; ie April - December are currently zero) Row 2 shows Last Year average rates per month (all months have positive values). I've used the formula =SUM(C35:N35)/(COUNTIF(C35:N35,"<0")) to get the average rate for the Current Year but, I also want to be able to automatically calculate the average rate for the same period last year (ie Jan - March only in this example). |
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#4
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Calculate Average for same period last year
Your welcome and thank you for the feedback
"irish_hp" wrote: Thanks Mike H, that works perfectly. "Mike H" wrote: Try this =SUM(IF(C35:N35<0,C36:N36,0),0)/(COUNTIF(C35:N35,"<0")) It's an array so enter with CTRL+Shift+Enter. I have assumed last yesr is one row down from this year. Mike "irish_hp" wrote: I need to calculate the average rate both Year To Date and for the same period last year. I have two rows of data. Row 1 shows Current Year average rates per month (all zeros after previous month; ie April - December are currently zero) Row 2 shows Last Year average rates per month (all months have positive values). I've used the formula =SUM(C35:N35)/(COUNTIF(C35:N35,"<0")) to get the average rate for the Current Year but, I also want to be able to automatically calculate the average rate for the same period last year (ie Jan - March only in this example). |
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