How do I sum within a set time frame from the current date?
I am trying to figure out a way to add one column based on the date entered.
I need to write a formula that will calculate the past 6,12, and 24 months from the current date. Travis |
SD
=SUMPRODUCT(--(A1:A18<=E1),--(A1:A18(EDATE(E1,-6))),B1:B18) Change the -6 to -12 and -24 for the other months =SUMPRODUCT(--(A1:A18<=TODAY()),--(A1:A18(EDATE(TODAY(),-6))),B1:B18) Same formula, except the current date is today. "Skydiver Driver" <Skydiver wrote in message ... I am trying to figure out a way to add one column based on the date entered. I need to write a formula that will calculate the past 6,12, and 24 months from the current date. Travis |
You need to :
1. calculate the times in the past 2. look then up in your table 3. sum between the end points For the first part, is =TODAY() is in A1 then =DATE(YEAR(A1),MONTH(A1)-6,DAY(A1)) will be 6 months prior then =DATE(YEAR(A1),MONTH(A1)-12,DAY(A1)) will be 12 months prior then =DATE(YEAR(A1),MONTH(A1)-24,DAY(A1)) will be 24 months prior you would then use MATCH() to find the entries or SUMIF() or SUMPRODUCT() to get the correct sums -- Gary''s Student "Skydiver Driver" wrote: I am trying to figure out a way to add one column based on the date entered. I need to write a formula that will calculate the past 6,12, and 24 months from the current date. Travis |
How do I sum within a set time frame from the current date?
Thank you Don, you have been a tremendous help; I have been pulling my hair
out over this for some time. Travis "Don" wrote: SD =SUMPRODUCT(--(A1:A18<=E1),--(A1:A18(EDATE(E1,-6))),B1:B18) Change the -6 to -12 and -24 for the other months =SUMPRODUCT(--(A1:A18<=TODAY()),--(A1:A18(EDATE(TODAY(),-6))),B1:B18) Same formula, except the current date is today. "Skydiver Driver" <Skydiver wrote in message ... I am trying to figure out a way to add one column based on the date entered. I need to write a formula that will calculate the past 6,12, and 24 months from the current date. Travis |
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