# Simplify an Excel Formula

Does anyone know how to simplify this Excel formula: b12+b19+b27+b34+b42+b49+b56+b64+b71+b78+b86+b93?
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x

Commented:
Is there a pattern? At first it looked like it was B12 then +7 then +8, +7 etc, but 42-49-56 breaks that.

Is there another column that the selection of cells is based on?

For example if your data was such that you are adding all cells in column B where the value in column A had a specific value or number, you can use SumIF

SUMIF( range, criteria, [sum_range] )

For example if my data was:

Year      Value
2013      1
2013      2
2011      3
2011      4
2012      5
2012      65
2013      7
2013      8
2011      9
2012      9

and I wanted to sum where the year was 2013, I would do:
=SUMIF(A2:A11, 2013, B2:B11)
(which gives me 18)

Hope that helps!
0

Commented:
This formula is very simple... and I don't see any reason to simplify it.

But you may place it into some unused cell (e.g. az1) and then use just the reference to az1 (multiple times).
0

Commented:
Those cells are not equi-distant.  Is that correct?  If so, they are not consistently differently spaced either.  Is that also correct?  If so, the only way to simplify is to name those cells together as a range, then use formula like =SUM(MyNamedRange)

if they should be equidistant, then a formula like:  =SUMPRODUCT((MOD(ROW(B12:B93)-ROW(B12),7)=0)+0,B12:B93)

where the cells are 7 apart.
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Finance AnalystCommented:
Other option that this could cover.

If for example your formulas in the source cells are a sum of above eg:

B12 contains =SUM(B1:B11)
B19 contains =SUM(B13:B18) etc

Then in B94 you have the above multiple sums summated, you could change to a SUBTOTAL.

In each of the source SUMS change to SUBTOTAL
B12 contain =SUBTOTAL(9,B1:B11)
B19 contain =SUBTOTAL(9,B13:B18)

Then in B94
=SUBTOTAL(9,B1:B93)

This last SUBTOTAL will ignore other subtotals within the range.

Rather than manually replacing each of the SUMs with SUBTOTALs use the Edit - Replace function (Ctrl + h)

Find SUM(
Replace with SUBTOTAL(9,

Thanks
Rob H
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IT ManagerCommented:
If your cells move a lot, you could use names on them to ensure that you can see that they're correctly defined.  It would make the formula longer, but easier to understand or bug-check.
eg
=SalesJan+SalesFeb+SalesMar

To define the names quickly, select the cell you wish to name, and then type the name in the box to the LEFT of the formula bar (it will currently display the cell ref).

Then, whenever you build a formula that needs that cell, click it, and the formula will use the name, rather than the cell ref.
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