# question

LupuCiprianConstantinWPBVSHC-2826 asked ·

## Excel | TREND Function

Hello, I have a simple question for which probably there will be many experts that can help me. And for that I would like to thank you in advance!
I have a set of values that looks like this:
EVAL.RESULT | PERCENTAGE.LEVEL

1 | 50%
2 | 75%
3 | 90%
4 | 95%
5 | 99%

I want to know if the TREND function could help me to find the "Percentage.level" for a known EVAL.RESULT? To make myself more clear - if the known EVAL.RESULT is 1.5 then the PERCENTAGE.LEVEL should be in the middle of 50% and 75%. If the EVAL.RESULT will be 4.5 then the PERCENTAGE.LEVEL should be 97% (in the middle of 95% and 99% So, with trend it is creating a linear function based the entire set of data but for me is important to see if there is a function that will return the correct value on the line that the actual set of data is drawing. Thank you once again for your help

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### 3 Answers

LupuCiprianConstantinWPBVSHC-2826 answered ·

Thank you for your answer but the problem is that for each value formula is different - I need to check where's the value (between which min and max) and then apply formula for that section.
I was thinking if there is a formula that will automatically return the right value depending where the searched X is located

Something like in the picture bellow image.png (74.8 KiB)
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@LupuCiprianConstantinWPBVSHC-2826

Maybe you could try the following formula.
=(VLOOKUP(ROUNDDOWN(\$A\$10,0),A1:B6,2,FALSE))+((VLOOKUP(ROUNDUP(\$A\$10,0),A1:B6,2,FALSE)-VLOOKUP(ROUNDDOWN(\$A\$10,0),A1:B6,2,FALSE))*(\$A\$10-ROUNDDOWN(\$A\$10,0))) ]

1 Vote 1 ·
image.png (57.2 KiB)
erinding-msft answered ·

@LupuCiprianConstantinWPBVSHC-2826

Based on your description, I use the formulas as below screenshots.  More information about TREND function, you could refer to this official document.

Hope the above is helpful to you.

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image.png (13.9 KiB)
image.png (13.8 KiB)
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LupuCiprianConstantinWPBVSHC-2826 answered ·

Thank you for your answer

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