# Greater Than, Less Than, or Equal To previous month value

Hello,

I'm looking for help with the following formula to show trending information.

12 Months of Data (Jan - Dec), When each month gets updated, I would like to use a formula to show symbols for trending up, down, or unchanged compared to the previous month.

Does anyone know of a formula that can point me in the right direction?

Thank you.

• Can you provide a screenshot of how your data is currently laid out?

• So we want to pull from current_month...

INDEX(Jan@row:Dec@row, 1, MONTH(TODAY()))

And compare to previous_month...

INDEX(Jan@row:Dec@row, 1, MONTH(TODAY()) - 1)

and drop that comparison into a nested IF statement to show no change if equal, up if up, and down if down.

=IF(current_month = previous_month, "Unchanged", IF(current_month < previous_month, "Down", IF(current_month > previous_month, "Up")))

=IF(INDEX(Jan@row:Dec@row, 1, MONTH(TODAY())) = INDEX(Jan@row:Dec@row, 1, MONTH(TODAY()) - 1), "Unchanged", IF(INDEX(Jan@row:Dec@row, 1, MONTH(TODAY())) < INDEX(Jan@row:Dec@row, 1, MONTH(TODAY()) - 1), "Down", IF(INDEX(Jan@row:Dec@row, 1, MONTH(TODAY())) > INDEX(Jan@row:Dec@row, 1, MONTH(TODAY()) - 1), "Up")))

• Thanks! This is great!

I pasted the formula and it's giving me the opposite results of what I want. I'll get a screenshot shortly to show you the results.

I understand the syntax, so I'm not sure what is going on.

• You'll see that the first row is showing "down" but should be "Unchanged".

Second row should be "up", but is showing "down".

Not sure what is going on....

• How exactly are the numbers being calculated?

• Monthly Data Values are populated via Form Entry.

YTD is just an average of JAN:DEC

• Ok. When a user enters the number into the form, are they just entering a number and the field is automatically converted to a percentage, or are they actually entering the % symbol? If they are manually entering the % symbol, then it is going to be stored as a text value instead of a numerical value.

• They should be just entering a number, but I guess some of them could be adding the % symbol.

I have the values formatted in the source sheet.

• Try running a test and updating some of those rows with unexpected results manually so that you are sure they are numerical values.

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