Sumif function to determine a trend in data

Hello!

is there a way to calculate the folowing logic?:

I have a table with current months listed  across and stores listed down. Each store has a numerical data for each month. I need to know if a trend for these charges. So the formula will need to look at all the values across the months and give me the final answer of "increase" or "decrease". The majority of these charges wil be the same but since I have several thousands of rows, I would like to automate this process and not go line by line.Below is a snapshot of my chart. I typed "increase","decrease" and "same"..I would like to use a formula instead. Thanks
Store      Sum of May3      Sum of Jun3      Sum of Sep3
3       (2,300)                              (2,900)       (2,900)           increase
16       (8,419)                              (8,419)       (8,419)           same
24       (4,592)                              (4,592)       (4,700)           increase
25       (4,050)                              (4,050)        (4,050)           same
212       (5,046)                              (5,206)            -              decrease
233       (5,323)                              (5,123)        (5,123)           decrease
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PresidentCommented:
Do you have a sample copy of he workbook?
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Author Commented:
Here you go....

thanks
Montly-Charges-Trend.xlsx
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PresidentCommented:
I would almost suggest using sparklines unless there is a specific reason you would like to return a text value.
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Author Commented:
I need a text value b/c further on I will need to use a % of stores that have either an increase trend or a decrease trend. spraklines will not all me to do it.
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PresidentCommented:
To clarify:

Most values in this worksheet are negative numbers.  If data moves farther into the negative, do you consider that an INCREASE or a DECREASE?
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Author Commented:
the reason it is negative is b/c it is considered to be an expense. The larger number the more we have to pay...Therefore, a larger value means an increase.
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PresidentCommented:
Check the attached worksheet.

With the custom formatting applied, cells that are appear as '-' are interpreted for their value of 0.

I have included a statement that says if the current month value is 0, then return 'not enough data'.

I have also provided the percentages you mentioned doing later in the I916:I918 range.

Let me know if you have any questions or changes.
Montly-Charges-Trend--Q-28257287.xlsx
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