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Editorial Team
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Asked: 2026-06-08T18:29:02+00:00

I created a lookup table which serves as a transmutation tool for students’ grades.

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I created a lookup table which serves as a transmutation tool for students’ grades. Here’s a link of the Excel Sheet for reference.

The structure may look weird because there may be multiple lookup values which should return the same value. Now looking at the linked excel sheet, my question is why searching for a perfect score will NOT return a perfect transmutation grade (highlighted cells). Every other lookup value seems to get an accurate return value.

Thanks in advance!

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1 Answer

  1. Editorial Team

    LOOKUP required the lookup vector to be in ascending order. Your data deviates from this starting at row 102

    Form Excell Help

    Important The values in lookup_vector must be placed in ascending order: …, -2, -1, 0, 1, 2, …, A-Z, FALSE, TRUE; otherwise, LOOKUP might not return the correct value. Uppercase and lowercase text are equivalent

    An alternative formula would be

    =INDEX(Trans!A:A,MATCH(A2,Trans!E:E,0))
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