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# Excel/sum product formula

Question
QUESTION: I have one spreadsheet that has the following columns, year end date (2012, 2013, 2011, etc..), account type, account name, assets. One the second spreadsheet I created 2 drop down boxes one has in it the following list: last year, last 5 years, last 10 years, the other has a list of all the account types. I am trying to create a sumproduct formula that will calculate the assets based off of what I select in both drop down boxes."

Assume
Sheet1

A2:A1000   end date year as you show  ex: 2012
B2:B1000   account type
C2:C1000   account name
D2:D1000   assets  (assume this is a number to be summed)

Sheet2
A1  will hold either  "Last year", "Last 5 years", "Last 10 Years"
B1  will hold an accout type

c1:  =IF(A1="",0,IF(A1="last year",SUMPRODUCT(--(Sheet1!\$A\$2:\$A\$1000=YEAR(TODAY())-1),--(Sheet1!\$B\$2:\$B\$1000=B1),Sheet1!\$D\$2:\$D\$1000),SUMPRODUCT(--(Sheet1!\$A\$2:\$A\$1000>YEAR(TODAY())-IF(A1="last 5 years",5,10)),--(Sheet1!\$B\$2:\$B\$1000=B1),Sheet1!\$D\$2:\$D\$1000)))

I have to use two sumproducts because  of the way you stated your situation.

I interpret last year as just the assets for the selected accounts in 2012

for last 5 years I would sum 2009, 2010, 2011, 2012, 2013

last 10 years would be  2004 - 2013

So last year excludes the current year.  But I have included the current year for last 5 and last 10.  This may be an incorrect interpretation and the formula could be modified if it is, but this is what I understood your description to say.

Formula was tested and worked as I describe.

--
Regards,
Tom Ogilvy

---------- FOLLOW-UP ----------

QUESTION: I was trying to use this formula where column D is year end, Column E is the account type, Column I is the status, and column K is the assets.

C2 is numbers 1,2,3,4,5,6.....10 meaning last 1 year, last 2 years, etc
and column c3 is a dropdown box. However my formula does not work

=SUM(IF(Flows!\$D:\$D>(MAX(Flows!\$D:\$D)-\$C\$2),SUMPRODUCT(--(Flows!\$E:\$E='Product Past Years'!\$C\$3),Flows!\$I:\$I="New Account",Flows!\$K:\$K)))

You have to have all your conditions within the sumproduct

This worked for me as I understand your requirement:

=SUMPRODUCT(--(flows!\$D:\$D>(MAX(flows!\$D:\$D)-\$C\$2)),--(flows!\$E:\$E='Product Past Years'!\$C\$3),--(flows!\$I:\$I="New Account"),flows!\$K:\$K)

Again, you will have to determing if the results of flows!\$D:\$D>(MAX(flows!\$D:\$D)-\$C\$2)  give you the correct years to include in the sum.  (i.e. the value in C2 produces a sum against the correct years).
--
Regards,
Tom Ogilvy

---------- FOLLOW-UP ----------

QUESTION: Hi Tom,

It worked! Thank you so much!

I am calculating the value in C2 based on end of year. So wouldn't it be correct? because if 2013 - 1 would equal anything in  year ending 2012.

and when 2014 comes if C2 equals 1 then it will calculate anything in year ending 2013. Am I thinking about this correctly?

Also, if I wanted to count the number of accounts that fall in this category, could I use the same formula by just changing the sumproduct to countif?

Daveena,

That sounds reasonable.  You might want to do a filter on your data just to compare the sum.

as far as the count, you would just remove the Asset column

=SUMPRODUCT(--(flows!\$D:\$D>(MAX(flows!\$D:\$D)-\$C\$2)),--(flows!\$E:\$E='Product Past Years'!\$C\$3),--(flows!\$I:\$I="New Account"),flows!\$K:\$K)

becomes

=SUMPRODUCT(--(flows!\$D:\$D>(MAX(flows!\$D:\$D)-\$C\$2)),--(flows!\$E:\$E='Product Past Years'!\$C\$3),--(flows!\$I:\$I="New Account"))

Countif will only do one condition.  You could use the new COUNTIFS which does multiple conditions, but if the sumproduct is working then why change. COUNTIF and COUNTIFS would require some changes to the conditions since it doesn't support the same structure as sumproduct.

--
Regards,
Tom Ogilvy
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#### Tom Ogilvy

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Selected as an Excel MVP by Microsoft since 1999. Answering Excel questions in Allexperts since its inception in 2001. Able to answer questions on almost all aspects of Excel's internal capabilities. If seeking a VBA solution, please specify that in your question itself so I give you the answer you want. [Excel has weak protection - if you are distributing an application, I don't answer questions on how to protect your project from your users.]

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